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Finding the Fourth Proportional to 40,662.76, 60,943.10 and 21,942.04

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Solution

The fourth proportional to 40,662.76, 60,943.10 and 21,942.04 is: 32,885.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,662.76 : 60,943.10 = 21,942.04 : x
  2. Step 2: Convert to fraction form
    40,662.76/60,943.10 = 21,942.04/x
  3. Step 3: Cross multiply
    40,662.76x = 60,943.10 × 21,942.04
  4. Step 4: Simplify right side
    40,662.76x = 1,337,215,937.92
  5. Step 5: Solve for x
    x = 1,337,215,937.92/40,662.76
  6. Step 6: Final answer
    x = 32,885.52

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1.5x scale

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.