Home / 13,840.83-20,761.32-3,452.58

Finding the Fourth Proportional to 13,840.83, 20,761.32 and 3,452.58

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Solution

The fourth proportional to 13,840.83, 20,761.32 and 3,452.58 is: 5,178.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.83 : 20,761.32 = 3,452.58 : x
  2. Step 2: Convert to fraction form
    13,840.83/20,761.32 = 3,452.58/x
  3. Step 3: Cross multiply
    13,840.83x = 20,761.32 × 3,452.58
  4. Step 4: Simplify right side
    13,840.83x = 71,680,118.21
  5. Step 5: Solve for x
    x = 71,680,118.21/13,840.83
  6. Step 6: Final answer
    x = 5,178.89

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