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Finding the Fourth Proportional to 40,372, 60,560.22 and 15,414.08

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Solution

The fourth proportional to 40,372, 60,560.22 and 15,414.08 is: 23,121.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,372 : 60,560.22 = 15,414.08 : x
  2. Step 2: Convert to fraction form
    40,372/60,560.22 = 15,414.08/x
  3. Step 3: Cross multiply
    40,372x = 60,560.22 × 15,414.08
  4. Step 4: Simplify right side
    40,372x = 933,480,075.90
  5. Step 5: Solve for x
    x = 933,480,075.90/40,372
  6. Step 6: Final answer
    x = 23,121.97

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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.