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Finding the Fourth Proportional to 40,296.78, 60,445.17 and 12,216.60

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Solution

The fourth proportional to 40,296.78, 60,445.17 and 12,216.60 is: 18,324.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,296.78 : 60,445.17 = 12,216.60 : x
  2. Step 2: Convert to fraction form
    40,296.78/60,445.17 = 12,216.60/x
  3. Step 3: Cross multiply
    40,296.78x = 60,445.17 × 12,216.60
  4. Step 4: Simplify right side
    40,296.78x = 738,434,463.82
  5. Step 5: Solve for x
    x = 738,434,463.82/40,296.78
  6. Step 6: Final answer
    x = 18,324.90

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1.5x scale

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.