Home / 27,910.92-38,517.75-15,978.10

Finding the Fourth Proportional to 27,910.92, 38,517.75 and 15,978.10

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Solution

The fourth proportional to 27,910.92, 38,517.75 and 15,978.10 is: 22,050.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,910.92 : 38,517.75 = 15,978.10 : x
  2. Step 2: Convert to fraction form
    27,910.92/38,517.75 = 15,978.10/x
  3. Step 3: Cross multiply
    27,910.92x = 38,517.75 × 15,978.10
  4. Step 4: Simplify right side
    27,910.92x = 615,440,461.28
  5. Step 5: Solve for x
    x = 615,440,461.28/27,910.92
  6. Step 6: Final answer
    x = 22,050.17

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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.