Home / 40,149.44-60,221.28-12,446.72

Finding the Fourth Proportional to 40,149.44, 60,221.28 and 12,446.72

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Solution

The fourth proportional to 40,149.44, 60,221.28 and 12,446.72 is: 18,669.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,149.44 : 60,221.28 = 12,446.72 : x
  2. Step 2: Convert to fraction form
    40,149.44/60,221.28 = 12,446.72/x
  3. Step 3: Cross multiply
    40,149.44x = 60,221.28 × 12,446.72
  4. Step 4: Simplify right side
    40,149.44x = 749,557,410.20
  5. Step 5: Solve for x
    x = 749,557,410.20/40,149.44
  6. Step 6: Final answer
    x = 18,669.19

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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.