Home / 40,220.26-60,331.20-19,162.72

Finding the Fourth Proportional to 40,220.26, 60,331.20 and 19,162.72

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Solution

The fourth proportional to 40,220.26, 60,331.20 and 19,162.72 is: 28,744.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,220.26 : 60,331.20 = 19,162.72 : x
  2. Step 2: Convert to fraction form
    40,220.26/60,331.20 = 19,162.72/x
  3. Step 3: Cross multiply
    40,220.26x = 60,331.20 × 19,162.72
  4. Step 4: Simplify right side
    40,220.26x = 1,156,109,892.86
  5. Step 5: Solve for x
    x = 1,156,109,892.86/40,220.26
  6. Step 6: Final answer
    x = 28,744.47

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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.