Home / 20,732.16-31,092.84-8,251.68

Finding the Fourth Proportional to 20,732.16, 31,092.84 and 8,251.68

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Solution

The fourth proportional to 20,732.16, 31,092.84 and 8,251.68 is: 12,375.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.16 : 31,092.84 = 8,251.68 : x
  2. Step 2: Convert to fraction form
    20,732.16/31,092.84 = 8,251.68/x
  3. Step 3: Cross multiply
    20,732.16x = 31,092.84 × 8,251.68
  4. Step 4: Simplify right side
    20,732.16x = 256,568,165.97
  5. Step 5: Solve for x
    x = 256,568,165.97/20,732.16
  6. Step 6: Final answer
    x = 12,375.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.