Home / 22,780.97-34,155.26-8,729.09

Finding the Fourth Proportional to 22,780.97, 34,155.26 and 8,729.09

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Solution

The fourth proportional to 22,780.97, 34,155.26 and 8,729.09 is: 13,087.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,780.97 : 34,155.26 = 8,729.09 : x
  2. Step 2: Convert to fraction form
    22,780.97/34,155.26 = 8,729.09/x
  3. Step 3: Cross multiply
    22,780.97x = 34,155.26 × 8,729.09
  4. Step 4: Simplify right side
    22,780.97x = 298,144,294.87
  5. Step 5: Solve for x
    x = 298,144,294.87/22,780.97
  6. Step 6: Final answer
    x = 13,087.43

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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.