document.write( "Question 1069521: A boy who is 4 ft tall stands in front of a tree that is 24 ft tall. If the tree casts a shadow that is 18 ft long on the ground and the two shadows end at the same point, what is the length of boy's shadow? \n" ); document.write( "
Algebra.Com's Answer #684700 by Boreal(15235)\"\" \"About 
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The shadows are proportional to the height.
\n" ); document.write( "24/18=4/x; cross-multiply.
\n" ); document.write( "24x=72
\n" ); document.write( "x=3 feet.
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