Home / 27,863.96-38,451.92-15,288.70

Finding the Fourth Proportional to 27,863.96, 38,451.92 and 15,288.70

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Solution

The fourth proportional to 27,863.96, 38,451.92 and 15,288.70 is: 21,098.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,863.96 : 38,451.92 = 15,288.70 : x
  2. Step 2: Convert to fraction form
    27,863.96/38,451.92 = 15,288.70/x
  3. Step 3: Cross multiply
    27,863.96x = 38,451.92 × 15,288.70
  4. Step 4: Simplify right side
    27,863.96x = 587,879,869.30
  5. Step 5: Solve for x
    x = 587,879,869.30/27,863.96
  6. Step 6: Final answer
    x = 21,098.22

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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.