Home / 13,441.92-20,161.28-3,581.92

Finding the Fourth Proportional to 13,441.92, 20,161.28 and 3,581.92

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Solution

The fourth proportional to 13,441.92, 20,161.28 and 3,581.92 is: 5,372.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.92 : 20,161.28 = 3,581.92 : x
  2. Step 2: Convert to fraction form
    13,441.92/20,161.28 = 3,581.92/x
  3. Step 3: Cross multiply
    13,441.92x = 20,161.28 × 3,581.92
  4. Step 4: Simplify right side
    13,441.92x = 72,216,092.06
  5. Step 5: Solve for x
    x = 72,216,092.06/13,441.92
  6. Step 6: Final answer
    x = 5,372.45

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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.