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Finding the Fourth Proportional to 40,407.20, 60,610.82 and 10,824.28

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Solution

The fourth proportional to 40,407.20, 60,610.82 and 10,824.28 is: 16,236.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,407.20 : 60,610.82 = 10,824.28 : x
  2. Step 2: Convert to fraction form
    40,407.20/60,610.82 = 10,824.28/x
  3. Step 3: Cross multiply
    40,407.20x = 60,610.82 × 10,824.28
  4. Step 4: Simplify right side
    40,407.20x = 656,068,486.71
  5. Step 5: Solve for x
    x = 656,068,486.71/40,407.20
  6. Step 6: Final answer
    x = 16,236.43

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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.