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Finding the Fourth Proportional to 42,466.80, 63,707.11 and 15,812.89

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Solution

The fourth proportional to 42,466.80, 63,707.11 and 15,812.89 is: 23,721.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,466.80 : 63,707.11 = 15,812.89 : x
  2. Step 2: Convert to fraction form
    42,466.80/63,707.11 = 15,812.89/x
  3. Step 3: Cross multiply
    42,466.80x = 63,707.11 × 15,812.89
  4. Step 4: Simplify right side
    42,466.80x = 1,007,393,323.85
  5. Step 5: Solve for x
    x = 1,007,393,323.85/42,466.80
  6. Step 6: Final answer
    x = 23,721.90

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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.