Home / 20,443.62-30,575.97-18,949.17

Finding the Fourth Proportional to 20,443.62, 30,575.97 and 18,949.17

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Solution

The fourth proportional to 20,443.62, 30,575.97 and 18,949.17 is: 28,340.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,443.62 : 30,575.97 = 18,949.17 : x
  2. Step 2: Convert to fraction form
    20,443.62/30,575.97 = 18,949.17/x
  3. Step 3: Cross multiply
    20,443.62x = 30,575.97 × 18,949.17
  4. Step 4: Simplify right side
    20,443.62x = 579,389,253.44
  5. Step 5: Solve for x
    x = 579,389,253.44/20,443.62
  6. Step 6: Final answer
    x = 28,340.83

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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.