Home / 39,841.62-54,981.30-21,936.66

Finding the Fourth Proportional to 39,841.62, 54,981.30 and 21,936.66

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Solution

The fourth proportional to 39,841.62, 54,981.30 and 21,936.66 is: 30,272.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,841.62 : 54,981.30 = 21,936.66 : x
  2. Step 2: Convert to fraction form
    39,841.62/54,981.30 = 21,936.66/x
  3. Step 3: Cross multiply
    39,841.62x = 54,981.30 × 21,936.66
  4. Step 4: Simplify right side
    39,841.62x = 1,206,106,084.46
  5. Step 5: Solve for x
    x = 1,206,106,084.46/39,841.62
  6. Step 6: Final answer
    x = 30,272.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.