Home / 40,391.68-60,612.78-15,433.86

Finding the Fourth Proportional to 40,391.68, 60,612.78 and 15,433.86

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Solution

The fourth proportional to 40,391.68, 60,612.78 and 15,433.86 is: 23,160.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,391.68 : 60,612.78 = 15,433.86 : x
  2. Step 2: Convert to fraction form
    40,391.68/60,612.78 = 15,433.86/x
  3. Step 3: Cross multiply
    40,391.68x = 60,612.78 × 15,433.86
  4. Step 4: Simplify right side
    40,391.68x = 935,489,160.73
  5. Step 5: Solve for x
    x = 935,489,160.73/40,391.68
  6. Step 6: Final answer
    x = 23,160.44

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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.