Home / 39,843.06-54,981.38-21,934.62

Finding the Fourth Proportional to 39,843.06, 54,981.38 and 21,934.62

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Solution

The fourth proportional to 39,843.06, 54,981.38 and 21,934.62 is: 30,268.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,843.06 : 54,981.38 = 21,934.62 : x
  2. Step 2: Convert to fraction form
    39,843.06/54,981.38 = 21,934.62/x
  3. Step 3: Cross multiply
    39,843.06x = 54,981.38 × 21,934.62
  4. Step 4: Simplify right side
    39,843.06x = 1,205,995,567.70
  5. Step 5: Solve for x
    x = 1,205,995,567.70/39,843.06
  6. Step 6: Final answer
    x = 30,268.65

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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.