Home / 40,381.68-60,580.56-15,420.72

Finding the Fourth Proportional to 40,381.68, 60,580.56 and 15,420.72

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Solution

The fourth proportional to 40,381.68, 60,580.56 and 15,420.72 is: 23,134.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,381.68 : 60,580.56 = 15,420.72 : x
  2. Step 2: Convert to fraction form
    40,381.68/60,580.56 = 15,420.72/x
  3. Step 3: Cross multiply
    40,381.68x = 60,580.56 × 15,420.72
  4. Step 4: Simplify right side
    40,381.68x = 934,195,853.20
  5. Step 5: Solve for x
    x = 934,195,853.20/40,381.68
  6. Step 6: Final answer
    x = 23,134.15

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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.