Set up a proportion first using this formula:
number/100 = is/of (they are set up like fractions)
Plug corresponding values into equation:
20/100 = 16/x (or whatever variable you choose)
Cross multiply the values:
20 * x and 100 *16
Set the resulting products equal to each other:
20x=1600
Isolate the variable by dividing the value in front of it by both sides:
20x/20 and 1600/20
Set the variable equal to the resulting value:
x=80
Check answer by plugging the solution into the original equation:
20/100 = 16/80
Determine if the values of each side are equal to each other. If so, the solution is correct:
0.2=0.2
Solution is correct!
16 is 20% of 80
Hope this helps :)
