Home / 13,388.39-20,091.85-4,623.38

Finding the Fourth Proportional to 13,388.39, 20,091.85 and 4,623.38

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Solution

The fourth proportional to 13,388.39, 20,091.85 and 4,623.38 is: 6,938.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,388.39 : 20,091.85 = 4,623.38 : x
  2. Step 2: Convert to fraction form
    13,388.39/20,091.85 = 4,623.38/x
  3. Step 3: Cross multiply
    13,388.39x = 20,091.85 × 4,623.38
  4. Step 4: Simplify right side
    13,388.39x = 92,892,220.78
  5. Step 5: Solve for x
    x = 92,892,220.78/13,388.39
  6. Step 6: Final answer
    x = 6,938.27

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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.