Home / 27,863.88-38,452.76-15,288.64

Finding the Fourth Proportional to 27,863.88, 38,452.76 and 15,288.64

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Solution

The fourth proportional to 27,863.88, 38,452.76 and 15,288.64 is: 21,098.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,863.88 : 38,452.76 = 15,288.64 : x
  2. Step 2: Convert to fraction form
    27,863.88/38,452.76 = 15,288.64/x
  3. Step 3: Cross multiply
    27,863.88x = 38,452.76 × 15,288.64
  4. Step 4: Simplify right side
    27,863.88x = 587,890,404.65
  5. Step 5: Solve for x
    x = 587,890,404.65/27,863.88
  6. Step 6: Final answer
    x = 21,098.66

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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.