Home / 20,691.17-31,052.15-10,166.84

Finding the Fourth Proportional to 20,691.17, 31,052.15 and 10,166.84

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Solution

The fourth proportional to 20,691.17, 31,052.15 and 10,166.84 is: 15,257.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,691.17 : 31,052.15 = 10,166.84 : x
  2. Step 2: Convert to fraction form
    20,691.17/31,052.15 = 10,166.84/x
  3. Step 3: Cross multiply
    20,691.17x = 31,052.15 × 10,166.84
  4. Step 4: Simplify right side
    20,691.17x = 315,702,034.61
  5. Step 5: Solve for x
    x = 315,702,034.61/20,691.17
  6. Step 6: Final answer
    x = 15,257.82

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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.