Home / 27,876.75-38,470.05-15,301.50

Finding the Fourth Proportional to 27,876.75, 38,470.05 and 15,301.50

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Solution

The fourth proportional to 27,876.75, 38,470.05 and 15,301.50 is: 21,116.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,876.75 : 38,470.05 = 15,301.50 : x
  2. Step 2: Convert to fraction form
    27,876.75/38,470.05 = 15,301.50/x
  3. Step 3: Cross multiply
    27,876.75x = 38,470.05 × 15,301.50
  4. Step 4: Simplify right side
    27,876.75x = 588,649,470.08
  5. Step 5: Solve for x
    x = 588,649,470.08/27,876.75
  6. Step 6: Final answer
    x = 21,116.14

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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.