Home / 16,743.60-25,081.32-13,438.80

Finding the Fourth Proportional to 16,743.60, 25,081.32 and 13,438.80

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Solution

The fourth proportional to 16,743.60, 25,081.32 and 13,438.80 is: 20,130.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,743.60 : 25,081.32 = 13,438.80 : x
  2. Step 2: Convert to fraction form
    16,743.60/25,081.32 = 13,438.80/x
  3. Step 3: Cross multiply
    16,743.60x = 25,081.32 × 13,438.80
  4. Step 4: Simplify right side
    16,743.60x = 337,062,843.22
  5. Step 5: Solve for x
    x = 337,062,843.22/16,743.60
  6. Step 6: Final answer
    x = 20,130.85

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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.