Home / 27,979.56-38,600.01-18,531.72

Finding the Fourth Proportional to 27,979.56, 38,600.01 and 18,531.72

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Solution

The fourth proportional to 27,979.56, 38,600.01 and 18,531.72 is: 25,565.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,979.56 : 38,600.01 = 18,531.72 : x
  2. Step 2: Convert to fraction form
    27,979.56/38,600.01 = 18,531.72/x
  3. Step 3: Cross multiply
    27,979.56x = 38,600.01 × 18,531.72
  4. Step 4: Simplify right side
    27,979.56x = 715,324,577.32
  5. Step 5: Solve for x
    x = 715,324,577.32/27,979.56
  6. Step 6: Final answer
    x = 25,565.97

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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.