Question 56757
Since two items are being compared, set it up as a ratio problem:
a/b=c/d and solve for the missing variable:
.
$1500/$45=$1200/x
1500x=(45)(1200) [Cross-miltiply]
1500x=54,000
x=54,000/1500
x=$36
.
Check by plugging (x=36) back into the original equation.