Home / 39,704.68-54,791.49-21,801.61

Finding the Fourth Proportional to 39,704.68, 54,791.49 and 21,801.61

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Solution

The fourth proportional to 39,704.68, 54,791.49 and 21,801.61 is: 30,085.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,704.68 : 54,791.49 = 21,801.61 : x
  2. Step 2: Convert to fraction form
    39,704.68/54,791.49 = 21,801.61/x
  3. Step 3: Cross multiply
    39,704.68x = 54,791.49 × 21,801.61
  4. Step 4: Simplify right side
    39,704.68x = 1,194,542,696.30
  5. Step 5: Solve for x
    x = 1,194,542,696.30/39,704.68
  6. Step 6: Final answer
    x = 30,085.69

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1.5x scale

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.