document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=149143>Question 149143</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How can I solve a proportion problem?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #109402 by </B><A HREF=/tutors/aboutme.mpl?userid=mangopeeler07><B>mangopeeler07(462)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mangopeeler07><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=109402\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> For proportions, such as percentages, you would first set two fractions equal to each other, cross multiply and solve for the variable.  \r<BR>\n" );
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document.write( "For example, if you are trying to find what percent of 60 is 20.  You would set it up as:\r<BR>\n" );
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document.write( "20/60=x/100\r<BR>\n" );
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document.write( "x is over 100 because we don't know the percent.  Then you would just cross multiply and solve.\r<BR>\n" );
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document.write( "20(100)=60x<BR>\n" );
document.write( "2000=60x<BR>\n" );
document.write( "33.3=x\r<BR>\n" );
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document.write( "If you know the percent but not the amount, for example what is 33% of 60? You would set it up as:\r<BR>\n" );
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document.write( "x/60=33/100\r<BR>\n" );
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document.write( "Cross multiply and solve.\r<BR>\n" );
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document.write( "100x=60(33)<BR>\n" );
document.write( "100x=1980<BR>\n" );
document.write( "x=19.8\r<BR>\n" );
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document.write( "If you know the percent and the amount, but not the denominator, as in 20 is 33% of what number? You would set it up as:\r<BR>\n" );
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document.write( "20/x=33/100\r<BR>\n" );
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document.write( "Cross multiply and solve.\r<BR>\n" );
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document.write( "20(100)=33x<BR>\n" );
document.write( "2000=33x<BR>\n" );
document.write( "60.6=x </SPAN>\n" );
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