Home / 17,878.14-24,672.68-9,920.43

Finding the Fourth Proportional to 17,878.14, 24,672.68 and 9,920.43

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Solution

The fourth proportional to 17,878.14, 24,672.68 and 9,920.43 is: 13,690.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,878.14 : 24,672.68 = 9,920.43 : x
  2. Step 2: Convert to fraction form
    17,878.14/24,672.68 = 9,920.43/x
  3. Step 3: Cross multiply
    17,878.14x = 24,672.68 × 9,920.43
  4. Step 4: Simplify right side
    17,878.14x = 244,763,545.25
  5. Step 5: Solve for x
    x = 244,763,545.25/17,878.14
  6. Step 6: Final answer
    x = 13,690.66

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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.