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Finding the Fourth Proportional to 40,432.68, 60,627.90 and 12,723.24

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Solution

The fourth proportional to 40,432.68, 60,627.90 and 12,723.24 is: 19,078.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,432.68 : 60,627.90 = 12,723.24 : x
  2. Step 2: Convert to fraction form
    40,432.68/60,627.90 = 12,723.24/x
  3. Step 3: Cross multiply
    40,432.68x = 60,627.90 × 12,723.24
  4. Step 4: Simplify right side
    40,432.68x = 771,383,322.40
  5. Step 5: Solve for x
    x = 771,383,322.40/40,432.68
  6. Step 6: Final answer
    x = 19,078.21

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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.