Home / 22,778.43-34,167.87-7,987.70

Finding the Fourth Proportional to 22,778.43, 34,167.87 and 7,987.70

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Solution

The fourth proportional to 22,778.43, 34,167.87 and 7,987.70 is: 11,981.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,778.43 : 34,167.87 = 7,987.70 : x
  2. Step 2: Convert to fraction form
    22,778.43/34,167.87 = 7,987.70/x
  3. Step 3: Cross multiply
    22,778.43x = 34,167.87 × 7,987.70
  4. Step 4: Simplify right side
    22,778.43x = 272,922,780.62
  5. Step 5: Solve for x
    x = 272,922,780.62/22,778.43
  6. Step 6: Final answer
    x = 11,981.63

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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.