Home / 27,921.54-38,531.82-15,984.97

Finding the Fourth Proportional to 27,921.54, 38,531.82 and 15,984.97

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Solution

The fourth proportional to 27,921.54, 38,531.82 and 15,984.97 is: 22,059.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,921.54 : 38,531.82 = 15,984.97 : x
  2. Step 2: Convert to fraction form
    27,921.54/38,531.82 = 15,984.97/x
  3. Step 3: Cross multiply
    27,921.54x = 38,531.82 × 15,984.97
  4. Step 4: Simplify right side
    27,921.54x = 615,929,974.97
  5. Step 5: Solve for x
    x = 615,929,974.97/27,921.54
  6. Step 6: Final answer
    x = 22,059.31

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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.