Home / 19,331.44-29,045.76-12,314.61

Finding the Fourth Proportional to 19,331.44, 29,045.76 and 12,314.61

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Solution

The fourth proportional to 19,331.44, 29,045.76 and 12,314.61 is: 18,502.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,331.44 : 29,045.76 = 12,314.61 : x
  2. Step 2: Convert to fraction form
    19,331.44/29,045.76 = 12,314.61/x
  3. Step 3: Cross multiply
    19,331.44x = 29,045.76 × 12,314.61
  4. Step 4: Simplify right side
    19,331.44x = 357,687,206.55
  5. Step 5: Solve for x
    x = 357,687,206.55/19,331.44
  6. Step 6: Final answer
    x = 18,502.87

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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.