Home / 27,969.54-38,589.27-15,868.04

Finding the Fourth Proportional to 27,969.54, 38,589.27 and 15,868.04

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Solution

The fourth proportional to 27,969.54, 38,589.27 and 15,868.04 is: 21,892.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,969.54 : 38,589.27 = 15,868.04 : x
  2. Step 2: Convert to fraction form
    27,969.54/38,589.27 = 15,868.04/x
  3. Step 3: Cross multiply
    27,969.54x = 38,589.27 × 15,868.04
  4. Step 4: Simplify right side
    27,969.54x = 612,335,886.98
  5. Step 5: Solve for x
    x = 612,335,886.98/27,969.54
  6. Step 6: Final answer
    x = 21,892.96

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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.