Home / 31,690.13-43,732.90-17,349.72

Finding the Fourth Proportional to 31,690.13, 43,732.90 and 17,349.72

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Solution

The fourth proportional to 31,690.13, 43,732.90 and 17,349.72 is: 23,942.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,690.13 : 43,732.90 = 17,349.72 : x
  2. Step 2: Convert to fraction form
    31,690.13/43,732.90 = 17,349.72/x
  3. Step 3: Cross multiply
    31,690.13x = 43,732.90 × 17,349.72
  4. Step 4: Simplify right side
    31,690.13x = 758,753,755.47
  5. Step 5: Solve for x
    x = 758,753,755.47/31,690.13
  6. Step 6: Final answer
    x = 23,942.90

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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.