Home / 13,427.46-20,120.67-5,632.02

Finding the Fourth Proportional to 13,427.46, 20,120.67 and 5,632.02

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Solution

The fourth proportional to 13,427.46, 20,120.67 and 5,632.02 is: 8,439.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.46 : 20,120.67 = 5,632.02 : x
  2. Step 2: Convert to fraction form
    13,427.46/20,120.67 = 5,632.02/x
  3. Step 3: Cross multiply
    13,427.46x = 20,120.67 × 5,632.02
  4. Step 4: Simplify right side
    13,427.46x = 113,320,015.85
  5. Step 5: Solve for x
    x = 113,320,015.85/13,427.46
  6. Step 6: Final answer
    x = 8,439.42

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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.