Home / 39,747.69-54,851.76-21,843.83

Finding the Fourth Proportional to 39,747.69, 54,851.76 and 21,843.83

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Solution

The fourth proportional to 39,747.69, 54,851.76 and 21,843.83 is: 30,144.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,747.69 : 54,851.76 = 21,843.83 : x
  2. Step 2: Convert to fraction form
    39,747.69/54,851.76 = 21,843.83/x
  3. Step 3: Cross multiply
    39,747.69x = 54,851.76 × 21,843.83
  4. Step 4: Simplify right side
    39,747.69x = 1,198,172,246.38
  5. Step 5: Solve for x
    x = 1,198,172,246.38/39,747.69
  6. Step 6: Final answer
    x = 30,144.45

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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.