Home / 31,287.28-43,176.50-16,947.14

Finding the Fourth Proportional to 31,287.28, 43,176.50 and 16,947.14

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Solution

The fourth proportional to 31,287.28, 43,176.50 and 16,947.14 is: 23,387.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,287.28 : 43,176.50 = 16,947.14 : x
  2. Step 2: Convert to fraction form
    31,287.28/43,176.50 = 16,947.14/x
  3. Step 3: Cross multiply
    31,287.28x = 43,176.50 × 16,947.14
  4. Step 4: Simplify right side
    31,287.28x = 731,718,190.21
  5. Step 5: Solve for x
    x = 731,718,190.21/31,287.28
  6. Step 6: Final answer
    x = 23,387.08

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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.