Home / 27,947.90-38,548.56-18,979.82

Finding the Fourth Proportional to 27,947.90, 38,548.56 and 18,979.82

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Solution

The fourth proportional to 27,947.90, 38,548.56 and 18,979.82 is: 26,178.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,947.90 : 38,548.56 = 18,979.82 : x
  2. Step 2: Convert to fraction form
    27,947.90/38,548.56 = 18,979.82/x
  3. Step 3: Cross multiply
    27,947.90x = 38,548.56 × 18,979.82
  4. Step 4: Simplify right side
    27,947.90x = 731,644,730.06
  5. Step 5: Solve for x
    x = 731,644,730.06/27,947.90
  6. Step 6: Final answer
    x = 26,178.88

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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.