Home / 27,808.14-38,375.85-15,871.23

Finding the Fourth Proportional to 27,808.14, 38,375.85 and 15,871.23

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Solution

The fourth proportional to 27,808.14, 38,375.85 and 15,871.23 is: 21,902.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,808.14 : 38,375.85 = 15,871.23 : x
  2. Step 2: Convert to fraction form
    27,808.14/38,375.85 = 15,871.23/x
  3. Step 3: Cross multiply
    27,808.14x = 38,375.85 × 15,871.23
  4. Step 4: Simplify right side
    27,808.14x = 609,071,862.44
  5. Step 5: Solve for x
    x = 609,071,862.44/27,808.14
  6. Step 6: Final answer
    x = 21,902.65

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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.