Home / 27,867.33-38,456.90-15,930.92

Finding the Fourth Proportional to 27,867.33, 38,456.90 and 15,930.92

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Solution

The fourth proportional to 27,867.33, 38,456.90 and 15,930.92 is: 21,984.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,867.33 : 38,456.90 = 15,930.92 : x
  2. Step 2: Convert to fraction form
    27,867.33/38,456.90 = 15,930.92/x
  3. Step 3: Cross multiply
    27,867.33x = 38,456.90 × 15,930.92
  4. Step 4: Simplify right side
    27,867.33x = 612,653,797.35
  5. Step 5: Solve for x
    x = 612,653,797.35/27,867.33
  6. Step 6: Final answer
    x = 21,984.66

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1.5x scale

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.