Home / 25,203.12-34,780.92-15,132

Finding the Fourth Proportional to 25,203.12, 34,780.92 and 15,132

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Solution

The fourth proportional to 25,203.12, 34,780.92 and 15,132 is: 20,882.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,203.12 : 34,780.92 = 15,132 : x
  2. Step 2: Convert to fraction form
    25,203.12/34,780.92 = 15,132/x
  3. Step 3: Cross multiply
    25,203.12x = 34,780.92 × 15,132
  4. Step 4: Simplify right side
    25,203.12x = 526,304,881.44
  5. Step 5: Solve for x
    x = 526,304,881.44/25,203.12
  6. Step 6: Final answer
    x = 20,882.53

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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.