Home / 27,886.08-38,481.45-15,138.96

Finding the Fourth Proportional to 27,886.08, 38,481.45 and 15,138.96

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Solution

The fourth proportional to 27,886.08, 38,481.45 and 15,138.96 is: 20,891.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,886.08 : 38,481.45 = 15,138.96 : x
  2. Step 2: Convert to fraction form
    27,886.08/38,481.45 = 15,138.96/x
  3. Step 3: Cross multiply
    27,886.08x = 38,481.45 × 15,138.96
  4. Step 4: Simplify right side
    27,886.08x = 582,569,132.29
  5. Step 5: Solve for x
    x = 582,569,132.29/27,886.08
  6. Step 6: Final answer
    x = 20,891.04

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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.