Home / 28,167.86-38,872.17-16,229.18

Finding the Fourth Proportional to 28,167.86, 38,872.17 and 16,229.18

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Solution

The fourth proportional to 28,167.86, 38,872.17 and 16,229.18 is: 22,396.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,167.86 : 38,872.17 = 16,229.18 : x
  2. Step 2: Convert to fraction form
    28,167.86/38,872.17 = 16,229.18/x
  3. Step 3: Cross multiply
    28,167.86x = 38,872.17 × 16,229.18
  4. Step 4: Simplify right side
    28,167.86x = 630,863,443.92
  5. Step 5: Solve for x
    x = 630,863,443.92/28,167.86
  6. Step 6: Final answer
    x = 22,396.57

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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.