Home / 31,381.28-43,306.92-17,234.43

Finding the Fourth Proportional to 31,381.28, 43,306.92 and 17,234.43

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Solution

The fourth proportional to 31,381.28, 43,306.92 and 17,234.43 is: 23,783.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,381.28 : 43,306.92 = 17,234.43 : x
  2. Step 2: Convert to fraction form
    31,381.28/43,306.92 = 17,234.43/x
  3. Step 3: Cross multiply
    31,381.28x = 43,306.92 × 17,234.43
  4. Step 4: Simplify right side
    31,381.28x = 746,369,778.55
  5. Step 5: Solve for x
    x = 746,369,778.55/31,381.28
  6. Step 6: Final answer
    x = 23,783.92

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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.