Home / 27,565.43-38,061.72-21,181.96

Finding the Fourth Proportional to 27,565.43, 38,061.72 and 21,181.96

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Solution

The fourth proportional to 27,565.43, 38,061.72 and 21,181.96 is: 29,247.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,565.43 : 38,061.72 = 21,181.96 : x
  2. Step 2: Convert to fraction form
    27,565.43/38,061.72 = 21,181.96/x
  3. Step 3: Cross multiply
    27,565.43x = 38,061.72 × 21,181.96
  4. Step 4: Simplify right side
    27,565.43x = 806,221,640.26
  5. Step 5: Solve for x
    x = 806,221,640.26/27,565.43
  6. Step 6: Final answer
    x = 29,247.56

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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.