Home / 21,183.62-29,229.53-12,227.85

Finding the Fourth Proportional to 21,183.62, 29,229.53 and 12,227.85

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Solution

The fourth proportional to 21,183.62, 29,229.53 and 12,227.85 is: 16,872.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,183.62 : 29,229.53 = 12,227.85 : x
  2. Step 2: Convert to fraction form
    21,183.62/29,229.53 = 12,227.85/x
  3. Step 3: Cross multiply
    21,183.62x = 29,229.53 × 12,227.85
  4. Step 4: Simplify right side
    21,183.62x = 357,414,247.27
  5. Step 5: Solve for x
    x = 357,414,247.27/21,183.62
  6. Step 6: Final answer
    x = 16,872.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.