Home / 42,654.13-63,953.79-17,711.40

Finding the Fourth Proportional to 42,654.13, 63,953.79 and 17,711.40

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Solution

The fourth proportional to 42,654.13, 63,953.79 and 17,711.40 is: 26,555.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,654.13 : 63,953.79 = 17,711.40 : x
  2. Step 2: Convert to fraction form
    42,654.13/63,953.79 = 17,711.40/x
  3. Step 3: Cross multiply
    42,654.13x = 63,953.79 × 17,711.40
  4. Step 4: Simplify right side
    42,654.13x = 1,132,711,156.21
  5. Step 5: Solve for x
    x = 1,132,711,156.21/42,654.13
  6. Step 6: Final answer
    x = 26,555.72

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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.