Home / 36,121.82-54,183.13-12,731.85

Finding the Fourth Proportional to 36,121.82, 54,183.13 and 12,731.85

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Solution

The fourth proportional to 36,121.82, 54,183.13 and 12,731.85 is: 19,097.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,121.82 : 54,183.13 = 12,731.85 : x
  2. Step 2: Convert to fraction form
    36,121.82/54,183.13 = 12,731.85/x
  3. Step 3: Cross multiply
    36,121.82x = 54,183.13 × 12,731.85
  4. Step 4: Simplify right side
    36,121.82x = 689,851,451.86
  5. Step 5: Solve for x
    x = 689,851,451.86/36,121.82
  6. Step 6: Final answer
    x = 19,097.92

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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.