Home / 19,156.53-28,725.66-8,061.15

Finding the Fourth Proportional to 19,156.53, 28,725.66 and 8,061.15

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Solution

The fourth proportional to 19,156.53, 28,725.66 and 8,061.15 is: 12,087.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,156.53 : 28,725.66 = 8,061.15 : x
  2. Step 2: Convert to fraction form
    19,156.53/28,725.66 = 8,061.15/x
  3. Step 3: Cross multiply
    19,156.53x = 28,725.66 × 8,061.15
  4. Step 4: Simplify right side
    19,156.53x = 231,561,854.11
  5. Step 5: Solve for x
    x = 231,561,854.11/19,156.53
  6. Step 6: Final answer
    x = 12,087.88

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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.