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Finding the Fourth Proportional to 40,982, 61,479.16 and 14,680.48

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Solution

The fourth proportional to 40,982, 61,479.16 and 14,680.48 is: 22,022.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,982 : 61,479.16 = 14,680.48 : x
  2. Step 2: Convert to fraction form
    40,982/61,479.16 = 14,680.48/x
  3. Step 3: Cross multiply
    40,982x = 61,479.16 × 14,680.48
  4. Step 4: Simplify right side
    40,982x = 902,543,578.80
  5. Step 5: Solve for x
    x = 902,543,578.80/40,982
  6. Step 6: Final answer
    x = 22,022.93

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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.