Home / 22,728.45-34,106.87-8,689.66

Finding the Fourth Proportional to 22,728.45, 34,106.87 and 8,689.66

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Solution

The fourth proportional to 22,728.45, 34,106.87 and 8,689.66 is: 13,039.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,728.45 : 34,106.87 = 8,689.66 : x
  2. Step 2: Convert to fraction form
    22,728.45/34,106.87 = 8,689.66/x
  3. Step 3: Cross multiply
    22,728.45x = 34,106.87 × 8,689.66
  4. Step 4: Simplify right side
    22,728.45x = 296,377,103.96
  5. Step 5: Solve for x
    x = 296,377,103.96/22,728.45
  6. Step 6: Final answer
    x = 13,039.92

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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.