Home / 19,979.19-27,568.22-11,481.62

Finding the Fourth Proportional to 19,979.19, 27,568.22 and 11,481.62

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Solution

The fourth proportional to 19,979.19, 27,568.22 and 11,481.62 is: 15,842.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,979.19 : 27,568.22 = 11,481.62 : x
  2. Step 2: Convert to fraction form
    19,979.19/27,568.22 = 11,481.62/x
  3. Step 3: Cross multiply
    19,979.19x = 27,568.22 × 11,481.62
  4. Step 4: Simplify right side
    19,979.19x = 316,527,630.87
  5. Step 5: Solve for x
    x = 316,527,630.87/19,979.19
  6. Step 6: Final answer
    x = 15,842.87

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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.