Home / 38,514.42-57,771.45-12,221.21

Finding the Fourth Proportional to 38,514.42, 57,771.45 and 12,221.21

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Solution

The fourth proportional to 38,514.42, 57,771.45 and 12,221.21 is: 18,331.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,514.42 : 57,771.45 = 12,221.21 : x
  2. Step 2: Convert to fraction form
    38,514.42/57,771.45 = 12,221.21/x
  3. Step 3: Cross multiply
    38,514.42x = 57,771.45 × 12,221.21
  4. Step 4: Simplify right side
    38,514.42x = 706,037,166.88
  5. Step 5: Solve for x
    x = 706,037,166.88/38,514.42
  6. Step 6: Final answer
    x = 18,331.76

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Similar ratio
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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.