Home / 27,719.92-38,251.70-15,144.68

Finding the Fourth Proportional to 27,719.92, 38,251.70 and 15,144.68

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Solution

The fourth proportional to 27,719.92, 38,251.70 and 15,144.68 is: 20,898.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,719.92 : 38,251.70 = 15,144.68 : x
  2. Step 2: Convert to fraction form
    27,719.92/38,251.70 = 15,144.68/x
  3. Step 3: Cross multiply
    27,719.92x = 38,251.70 × 15,144.68
  4. Step 4: Simplify right side
    27,719.92x = 579,309,755.96
  5. Step 5: Solve for x
    x = 579,309,755.96/27,719.92
  6. Step 6: Final answer
    x = 20,898.68

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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.