Home / 20,725.44-28,601.12-11,294

Finding the Fourth Proportional to 20,725.44, 28,601.12 and 11,294

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Solution

The fourth proportional to 20,725.44, 28,601.12 and 11,294 is: 15,585.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.44 : 28,601.12 = 11,294 : x
  2. Step 2: Convert to fraction form
    20,725.44/28,601.12 = 11,294/x
  3. Step 3: Cross multiply
    20,725.44x = 28,601.12 × 11,294
  4. Step 4: Simplify right side
    20,725.44x = 323,021,049.28
  5. Step 5: Solve for x
    x = 323,021,049.28/20,725.44
  6. Step 6: Final answer
    x = 15,585.73

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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.