Home / 13,795.57-20,687.28-3,932.61

Finding the Fourth Proportional to 13,795.57, 20,687.28 and 3,932.61

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Solution

The fourth proportional to 13,795.57, 20,687.28 and 3,932.61 is: 5,897.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,795.57 : 20,687.28 = 3,932.61 : x
  2. Step 2: Convert to fraction form
    13,795.57/20,687.28 = 3,932.61/x
  3. Step 3: Cross multiply
    13,795.57x = 20,687.28 × 3,932.61
  4. Step 4: Simplify right side
    13,795.57x = 81,355,004.20
  5. Step 5: Solve for x
    x = 81,355,004.20/13,795.57
  6. Step 6: Final answer
    x = 5,897.18

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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.