Home / 19,121.25-28,685.92-5,974.61

Finding the Fourth Proportional to 19,121.25, 28,685.92 and 5,974.61

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Solution

The fourth proportional to 19,121.25, 28,685.92 and 5,974.61 is: 8,963.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.25 : 28,685.92 = 5,974.61 : x
  2. Step 2: Convert to fraction form
    19,121.25/28,685.92 = 5,974.61/x
  3. Step 3: Cross multiply
    19,121.25x = 28,685.92 × 5,974.61
  4. Step 4: Simplify right side
    19,121.25x = 171,387,011.19
  5. Step 5: Solve for x
    x = 171,387,011.19/19,121.25
  6. Step 6: Final answer
    x = 8,963.17

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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.