Home / 27,769.25-38,320.61-15,836.43

Finding the Fourth Proportional to 27,769.25, 38,320.61 and 15,836.43

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Solution

The fourth proportional to 27,769.25, 38,320.61 and 15,836.43 is: 21,853.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,769.25 : 38,320.61 = 15,836.43 : x
  2. Step 2: Convert to fraction form
    27,769.25/38,320.61 = 15,836.43/x
  3. Step 3: Cross multiply
    27,769.25x = 38,320.61 × 15,836.43
  4. Step 4: Simplify right side
    27,769.25x = 606,861,578.64
  5. Step 5: Solve for x
    x = 606,861,578.64/27,769.25
  6. Step 6: Final answer
    x = 21,853.73

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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.