Home / 31,275.62-43,160.17-16,935.30

Finding the Fourth Proportional to 31,275.62, 43,160.17 and 16,935.30

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Solution

The fourth proportional to 31,275.62, 43,160.17 and 16,935.30 is: 23,370.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,275.62 : 43,160.17 = 16,935.30 : x
  2. Step 2: Convert to fraction form
    31,275.62/43,160.17 = 16,935.30/x
  3. Step 3: Cross multiply
    31,275.62x = 43,160.17 × 16,935.30
  4. Step 4: Simplify right side
    31,275.62x = 730,930,490.17
  5. Step 5: Solve for x
    x = 730,930,490.17/31,275.62
  6. Step 6: Final answer
    x = 23,370.62

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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.