Home / 28,287.16-39,037.26-15,713.08

Finding the Fourth Proportional to 28,287.16, 39,037.26 and 15,713.08

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Solution

The fourth proportional to 28,287.16, 39,037.26 and 15,713.08 is: 21,684.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,287.16 : 39,037.26 = 15,713.08 : x
  2. Step 2: Convert to fraction form
    28,287.16/39,037.26 = 15,713.08/x
  3. Step 3: Cross multiply
    28,287.16x = 39,037.26 × 15,713.08
  4. Step 4: Simplify right side
    28,287.16x = 613,395,589.36
  5. Step 5: Solve for x
    x = 613,395,589.36/28,287.16
  6. Step 6: Final answer
    x = 21,684.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.