Home / 25,872.42-38,773.56-11,815.02

Finding the Fourth Proportional to 25,872.42, 38,773.56 and 11,815.02

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Solution

The fourth proportional to 25,872.42, 38,773.56 and 11,815.02 is: 17,706.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,872.42 : 38,773.56 = 11,815.02 : x
  2. Step 2: Convert to fraction form
    25,872.42/38,773.56 = 11,815.02/x
  3. Step 3: Cross multiply
    25,872.42x = 38,773.56 × 11,815.02
  4. Step 4: Simplify right side
    25,872.42x = 458,110,386.87
  5. Step 5: Solve for x
    x = 458,110,386.87/25,872.42
  6. Step 6: Final answer
    x = 17,706.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.