Home / 20,792.24-28,691.69-11,837.96

Finding the Fourth Proportional to 20,792.24, 28,691.69 and 11,837.96

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Solution

The fourth proportional to 20,792.24, 28,691.69 and 11,837.96 is: 16,335.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,792.24 : 28,691.69 = 11,837.96 : x
  2. Step 2: Convert to fraction form
    20,792.24/28,691.69 = 11,837.96/x
  3. Step 3: Cross multiply
    20,792.24x = 28,691.69 × 11,837.96
  4. Step 4: Simplify right side
    20,792.24x = 339,650,875.90
  5. Step 5: Solve for x
    x = 339,650,875.90/20,792.24
  6. Step 6: Final answer
    x = 16,335.47

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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.