Home / 13,441.13-20,163.82-3,581.20

Finding the Fourth Proportional to 13,441.13, 20,163.82 and 3,581.20

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Solution

The fourth proportional to 13,441.13, 20,163.82 and 3,581.20 is: 5,372.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.13 : 20,163.82 = 3,581.20 : x
  2. Step 2: Convert to fraction form
    13,441.13/20,163.82 = 3,581.20/x
  3. Step 3: Cross multiply
    13,441.13x = 20,163.82 × 3,581.20
  4. Step 4: Simplify right side
    13,441.13x = 72,210,672.18
  5. Step 5: Solve for x
    x = 72,210,672.18/13,441.13
  6. Step 6: Final answer
    x = 5,372.37

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1.5x scale

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.