Home / 31,251.38-43,126.60-16,910.90

Finding the Fourth Proportional to 31,251.38, 43,126.60 and 16,910.90

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Solution

The fourth proportional to 31,251.38, 43,126.60 and 16,910.90 is: 23,336.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,251.38 : 43,126.60 = 16,910.90 : x
  2. Step 2: Convert to fraction form
    31,251.38/43,126.60 = 16,910.90/x
  3. Step 3: Cross multiply
    31,251.38x = 43,126.60 × 16,910.90
  4. Step 4: Simplify right side
    31,251.38x = 729,309,319.75
  5. Step 5: Solve for x
    x = 729,309,319.75/31,251.38
  6. Step 6: Final answer
    x = 23,336.87

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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.