Home / 38,408.79-57,613.19-12,115.58

Finding the Fourth Proportional to 38,408.79, 57,613.19 and 12,115.58

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Solution

The fourth proportional to 38,408.79, 57,613.19 and 12,115.58 is: 18,173.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,408.79 : 57,613.19 = 12,115.58 : x
  2. Step 2: Convert to fraction form
    38,408.79/57,613.19 = 12,115.58/x
  3. Step 3: Cross multiply
    38,408.79x = 57,613.19 × 12,115.58
  4. Step 4: Simplify right side
    38,408.79x = 698,016,863.86
  5. Step 5: Solve for x
    x = 698,016,863.86/38,408.79
  6. Step 6: Final answer
    x = 18,173.36

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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.