Home / 27,654.12-38,164.50-15,717.48

Finding the Fourth Proportional to 27,654.12, 38,164.50 and 15,717.48

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Solution

The fourth proportional to 27,654.12, 38,164.50 and 15,717.48 is: 21,691.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,654.12 : 38,164.50 = 15,717.48 : x
  2. Step 2: Convert to fraction form
    27,654.12/38,164.50 = 15,717.48/x
  3. Step 3: Cross multiply
    27,654.12x = 38,164.50 × 15,717.48
  4. Step 4: Simplify right side
    27,654.12x = 599,849,765.46
  5. Step 5: Solve for x
    x = 599,849,765.46/27,654.12
  6. Step 6: Final answer
    x = 21,691.15

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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.