Home / 40,372.70-60,561.14-12,290.58

Finding the Fourth Proportional to 40,372.70, 60,561.14 and 12,290.58

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Solution

The fourth proportional to 40,372.70, 60,561.14 and 12,290.58 is: 18,436.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,372.70 : 60,561.14 = 12,290.58 : x
  2. Step 2: Convert to fraction form
    40,372.70/60,561.14 = 12,290.58/x
  3. Step 3: Cross multiply
    40,372.70x = 60,561.14 × 12,290.58
  4. Step 4: Simplify right side
    40,372.70x = 744,331,474.61
  5. Step 5: Solve for x
    x = 744,331,474.61/40,372.70
  6. Step 6: Final answer
    x = 18,436.51

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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.