Home / 29,103.10-43,618.13-12,443.55

Finding the Fourth Proportional to 29,103.10, 43,618.13 and 12,443.55

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Solution

The fourth proportional to 29,103.10, 43,618.13 and 12,443.55 is: 18,649.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,103.10 : 43,618.13 = 12,443.55 : x
  2. Step 2: Convert to fraction form
    29,103.10/43,618.13 = 12,443.55/x
  3. Step 3: Cross multiply
    29,103.10x = 43,618.13 × 12,443.55
  4. Step 4: Simplify right side
    29,103.10x = 542,764,381.56
  5. Step 5: Solve for x
    x = 542,764,381.56/29,103.10
  6. Step 6: Final answer
    x = 18,649.71

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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.