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Finding the Fourth Proportional to 40,658.76, 60,937.11 and 21,938.04

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Solution

The fourth proportional to 40,658.76, 60,937.11 and 21,938.04 is: 32,879.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,658.76 : 60,937.11 = 21,938.04 : x
  2. Step 2: Convert to fraction form
    40,658.76/60,937.11 = 21,938.04/x
  3. Step 3: Cross multiply
    40,658.76x = 60,937.11 × 21,938.04
  4. Step 4: Simplify right side
    40,658.76x = 1,336,840,756.66
  5. Step 5: Solve for x
    x = 1,336,840,756.66/40,658.76
  6. Step 6: Final answer
    x = 32,879.53

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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.