Home / 39,644.76-54,711.42-21,740.44

Finding the Fourth Proportional to 39,644.76, 54,711.42 and 21,740.44

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Solution

The fourth proportional to 39,644.76, 54,711.42 and 21,740.44 is: 30,002.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,644.76 : 54,711.42 = 21,740.44 : x
  2. Step 2: Convert to fraction form
    39,644.76/54,711.42 = 21,740.44/x
  3. Step 3: Cross multiply
    39,644.76x = 54,711.42 × 21,740.44
  4. Step 4: Simplify right side
    39,644.76x = 1,189,450,343.82
  5. Step 5: Solve for x
    x = 1,189,450,343.82/39,644.76
  6. Step 6: Final answer
    x = 30,002.71

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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.