Home / 17,687.28-24,379.20-12,019.44

Finding the Fourth Proportional to 17,687.28, 24,379.20 and 12,019.44

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Solution

The fourth proportional to 17,687.28, 24,379.20 and 12,019.44 is: 16,566.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,687.28 : 24,379.20 = 12,019.44 : x
  2. Step 2: Convert to fraction form
    17,687.28/24,379.20 = 12,019.44/x
  3. Step 3: Cross multiply
    17,687.28x = 24,379.20 × 12,019.44
  4. Step 4: Simplify right side
    17,687.28x = 293,024,331.65
  5. Step 5: Solve for x
    x = 293,024,331.65/17,687.28
  6. Step 6: Final answer
    x = 16,566.95

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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.