Home / 13,552.90-20,329.20-3,692.11

Finding the Fourth Proportional to 13,552.90, 20,329.20 and 3,692.11

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Solution

The fourth proportional to 13,552.90, 20,329.20 and 3,692.11 is: 5,538.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,552.90 : 20,329.20 = 3,692.11 : x
  2. Step 2: Convert to fraction form
    13,552.90/20,329.20 = 3,692.11/x
  3. Step 3: Cross multiply
    13,552.90x = 20,329.20 × 3,692.11
  4. Step 4: Simplify right side
    13,552.90x = 75,057,642.61
  5. Step 5: Solve for x
    x = 75,057,642.61/13,552.90
  6. Step 6: Final answer
    x = 5,538.12

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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.