Home / 22,780.38-34,181.49-12,392.12

Finding the Fourth Proportional to 22,780.38, 34,181.49 and 12,392.12

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Solution

The fourth proportional to 22,780.38, 34,181.49 and 12,392.12 is: 18,594.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,780.38 : 34,181.49 = 12,392.12 : x
  2. Step 2: Convert to fraction form
    22,780.38/34,181.49 = 12,392.12/x
  3. Step 3: Cross multiply
    22,780.38x = 34,181.49 × 12,392.12
  4. Step 4: Simplify right side
    22,780.38x = 423,581,125.86
  5. Step 5: Solve for x
    x = 423,581,125.86/22,780.38
  6. Step 6: Final answer
    x = 18,594.12

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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.