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Finding the Fourth Proportional to 39,179, 54,067.02 and 22,412

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Solution

The fourth proportional to 39,179, 54,067.02 and 22,412 is: 30,928.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,179 : 54,067.02 = 22,412 : x
  2. Step 2: Convert to fraction form
    39,179/54,067.02 = 22,412/x
  3. Step 3: Cross multiply
    39,179x = 54,067.02 × 22,412
  4. Step 4: Simplify right side
    39,179x = 1,211,750,052.24
  5. Step 5: Solve for x
    x = 1,211,750,052.24/39,179
  6. Step 6: Final answer
    x = 30,928.56

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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.