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Finding the Fourth Proportional to 63,606, 95,409 and 19,830

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Solution

The fourth proportional to 63,606, 95,409 and 19,830 is: 29,745

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,606 : 95,409 = 19,830 : x
  2. Step 2: Convert to fraction form
    63,606/95,409 = 19,830/x
  3. Step 3: Cross multiply
    63,606x = 95,409 × 19,830
  4. Step 4: Simplify right side
    63,606x = 1,891,960,470
  5. Step 5: Solve for x
    x = 1,891,960,470/63,606
  6. Step 6: Final answer
    x = 29,745

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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.