Home / 31,634.30-43,654.17-18,207.62

Finding the Fourth Proportional to 31,634.30, 43,654.17 and 18,207.62

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Solution

The fourth proportional to 31,634.30, 43,654.17 and 18,207.62 is: 25,125.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,634.30 : 43,654.17 = 18,207.62 : x
  2. Step 2: Convert to fraction form
    31,634.30/43,654.17 = 18,207.62/x
  3. Step 3: Cross multiply
    31,634.30x = 43,654.17 × 18,207.62
  4. Step 4: Simplify right side
    31,634.30x = 794,838,538.78
  5. Step 5: Solve for x
    x = 794,838,538.78/31,634.30
  6. Step 6: Final answer
    x = 25,125.85

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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.