Home / 36,142.78-54,217.85-12,447.24

Finding the Fourth Proportional to 36,142.78, 54,217.85 and 12,447.24

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Solution

The fourth proportional to 36,142.78, 54,217.85 and 12,447.24 is: 18,672.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,142.78 : 54,217.85 = 12,447.24 : x
  2. Step 2: Convert to fraction form
    36,142.78/54,217.85 = 12,447.24/x
  3. Step 3: Cross multiply
    36,142.78x = 54,217.85 × 12,447.24
  4. Step 4: Simplify right side
    36,142.78x = 674,862,325.68
  5. Step 5: Solve for x
    x = 674,862,325.68/36,142.78
  6. Step 6: Final answer
    x = 18,672.12

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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.