Home / 39,839.29-54,977.15-21,934.43

Finding the Fourth Proportional to 39,839.29, 54,977.15 and 21,934.43

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Solution

The fourth proportional to 39,839.29, 54,977.15 and 21,934.43 is: 30,268.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,839.29 : 54,977.15 = 21,934.43 : x
  2. Step 2: Convert to fraction form
    39,839.29/54,977.15 = 21,934.43/x
  3. Step 3: Cross multiply
    39,839.29x = 54,977.15 × 21,934.43
  4. Step 4: Simplify right side
    39,839.29x = 1,205,892,448.27
  5. Step 5: Solve for x
    x = 1,205,892,448.27/39,839.29
  6. Step 6: Final answer
    x = 30,268.92

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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.