Home / 40,467.78-60,708.85-12,387.22

Finding the Fourth Proportional to 40,467.78, 60,708.85 and 12,387.22

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Solution

The fourth proportional to 40,467.78, 60,708.85 and 12,387.22 is: 18,583.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,467.78 : 60,708.85 = 12,387.22 : x
  2. Step 2: Convert to fraction form
    40,467.78/60,708.85 = 12,387.22/x
  3. Step 3: Cross multiply
    40,467.78x = 60,708.85 × 12,387.22
  4. Step 4: Simplify right side
    40,467.78x = 752,013,698.16
  5. Step 5: Solve for x
    x = 752,013,698.16/40,467.78
  6. Step 6: Final answer
    x = 18,583.02

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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.