Home / 22,778.20-34,155.15-9,615.70

Finding the Fourth Proportional to 22,778.20, 34,155.15 and 9,615.70

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Solution

The fourth proportional to 22,778.20, 34,155.15 and 9,615.70 is: 14,418.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,778.20 : 34,155.15 = 9,615.70 : x
  2. Step 2: Convert to fraction form
    22,778.20/34,155.15 = 9,615.70/x
  3. Step 3: Cross multiply
    22,778.20x = 34,155.15 × 9,615.70
  4. Step 4: Simplify right side
    22,778.20x = 328,425,675.86
  5. Step 5: Solve for x
    x = 328,425,675.86/22,778.20
  6. Step 6: Final answer
    x = 14,418.42

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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.