Home / 27,910.82-38,519.62-15,971.78

Finding the Fourth Proportional to 27,910.82, 38,519.62 and 15,971.78

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Solution

The fourth proportional to 27,910.82, 38,519.62 and 15,971.78 is: 22,042.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,910.82 : 38,519.62 = 15,971.78 : x
  2. Step 2: Convert to fraction form
    27,910.82/38,519.62 = 15,971.78/x
  3. Step 3: Cross multiply
    27,910.82x = 38,519.62 × 15,971.78
  4. Step 4: Simplify right side
    27,910.82x = 615,226,896.32
  5. Step 5: Solve for x
    x = 615,226,896.32/27,910.82
  6. Step 6: Final answer
    x = 22,042.59

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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.