Home / 39,785.62-54,905.56-21,882.02

Finding the Fourth Proportional to 39,785.62, 54,905.56 and 21,882.02

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Solution

The fourth proportional to 39,785.62, 54,905.56 and 21,882.02 is: 30,197.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,785.62 : 54,905.56 = 21,882.02 : x
  2. Step 2: Convert to fraction form
    39,785.62/54,905.56 = 21,882.02/x
  3. Step 3: Cross multiply
    39,785.62x = 54,905.56 × 21,882.02
  4. Step 4: Simplify right side
    39,785.62x = 1,201,444,562.03
  5. Step 5: Solve for x
    x = 1,201,444,562.03/39,785.62
  6. Step 6: Final answer
    x = 30,197.96

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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.