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Finding the Fourth Proportional to 40,484.39, 60,728.41 and 12,402.41

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Solution

The fourth proportional to 40,484.39, 60,728.41 and 12,402.41 is: 18,604.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,484.39 : 60,728.41 = 12,402.41 : x
  2. Step 2: Convert to fraction form
    40,484.39/60,728.41 = 12,402.41/x
  3. Step 3: Cross multiply
    40,484.39x = 60,728.41 × 12,402.41
  4. Step 4: Simplify right side
    40,484.39x = 753,178,335.83
  5. Step 5: Solve for x
    x = 753,178,335.83/40,484.39
  6. Step 6: Final answer
    x = 18,604.17

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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.