Home / 25,181.11-34,761.82-15,987.28

Finding the Fourth Proportional to 25,181.11, 34,761.82 and 15,987.28

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Solution

The fourth proportional to 25,181.11, 34,761.82 and 15,987.28 is: 22,069.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,181.11 : 34,761.82 = 15,987.28 : x
  2. Step 2: Convert to fraction form
    25,181.11/34,761.82 = 15,987.28/x
  3. Step 3: Cross multiply
    25,181.11x = 34,761.82 × 15,987.28
  4. Step 4: Simplify right side
    25,181.11x = 555,746,970.73
  5. Step 5: Solve for x
    x = 555,746,970.73/25,181.11
  6. Step 6: Final answer
    x = 22,069.99

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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.