47 is what percent of 312 - 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 312 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 312, so we can write it down as 100%=312.
4. We know, that x% equals 47 of the output value, so we can write it down as x%=47.
5. Now we have two simple equations:
1) 100%=312
2) x%=47
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%=312/47
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 47 is what percent of 312

100%/x%=312/47
(100/x)*x=(312/47)*x       - we multiply both sides of the equation by x
100=6.6382978723404*x       - we divide both sides of the equation by (6.6382978723404) to get x
100/6.6382978723404=x
15.064102564103=x
x=15.064102564103

now we have:
47 is 15.064102564103% of 312