Home / 18,781.44-28,089.36-16,715.04

Finding the Fourth Proportional to 18,781.44, 28,089.36 and 16,715.04

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Solution

The fourth proportional to 18,781.44, 28,089.36 and 16,715.04 is: 24,998.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,781.44 : 28,089.36 = 16,715.04 : x
  2. Step 2: Convert to fraction form
    18,781.44/28,089.36 = 16,715.04/x
  3. Step 3: Cross multiply
    18,781.44x = 28,089.36 × 16,715.04
  4. Step 4: Simplify right side
    18,781.44x = 469,514,775.97
  5. Step 5: Solve for x
    x = 469,514,775.97/18,781.44
  6. Step 6: Final answer
    x = 24,998.87

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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.