Home / 27,719.43-38,249.24-15,620.19

Finding the Fourth Proportional to 27,719.43, 38,249.24 and 15,620.19

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Solution

The fourth proportional to 27,719.43, 38,249.24 and 15,620.19 is: 21,553.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,719.43 : 38,249.24 = 15,620.19 : x
  2. Step 2: Convert to fraction form
    27,719.43/38,249.24 = 15,620.19/x
  3. Step 3: Cross multiply
    27,719.43x = 38,249.24 × 15,620.19
  4. Step 4: Simplify right side
    27,719.43x = 597,460,318.05
  5. Step 5: Solve for x
    x = 597,460,318.05/27,719.43
  6. Step 6: Final answer
    x = 21,553.85

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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.