Home / 42,654.52-63,981.78-21,864.76

Finding the Fourth Proportional to 42,654.52, 63,981.78 and 21,864.76

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Solution

The fourth proportional to 42,654.52, 63,981.78 and 21,864.76 is: 32,797.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,654.52 : 63,981.78 = 21,864.76 : x
  2. Step 2: Convert to fraction form
    42,654.52/63,981.78 = 21,864.76/x
  3. Step 3: Cross multiply
    42,654.52x = 63,981.78 × 21,864.76
  4. Step 4: Simplify right side
    42,654.52x = 1,398,946,264.07
  5. Step 5: Solve for x
    x = 1,398,946,264.07/42,654.52
  6. Step 6: Final answer
    x = 32,797.14

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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.