12.28 is what percent of 55 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 55 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 55, so we can write it down as 100%=55.
4. We know, that x% equals 12.28 of the output value, so we can write it down as x%=12.28.
5. Now we have two simple equations:
1) 100%=55
2) x%=12.28
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=55/12.28
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 12.28 is what percent of 55

100%/x%=55/12.28
(100/x)*x=(55/12.28)*x       - we multiply both sides of the equation by x
100=4.4788273615635*x       - we divide both sides of the equation by (4.4788273615635) to get x
100/4.4788273615635=x
22.327272727273=x
x=22.327272727273

now we have:
12.28 is 22.327272727273% of 55