SOLUTION: how do I solve this proportion? x/20=?/12

Algebra ->  Proportions  -> Lessons -> SOLUTION: how do I solve this proportion? x/20=?/12      Log On


   

Question 856370: how do I solve this proportion?
x/20=?/12
Found 2 solutions by josmiceli, Alan3354:
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Put in another variable in
place of the question mark
+x%2F20+=+y%2F12+
Now multiply both sides by +60+
+3x+=+5y+
Divide both sides by +5+
+y+=+%283%2F5%29%2Ax+
------------------
So, the proportion is:
+x%2F20+=+%28%283%2F5%29%2Ax%29+%2F+12+

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Solve for what?