Home / 13,441.62-20,162.40-3,580.92

Finding the Fourth Proportional to 13,441.62, 20,162.40 and 3,580.92

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Solution

The fourth proportional to 13,441.62, 20,162.40 and 3,580.92 is: 5,371.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.62 : 20,162.40 = 3,580.92 : x
  2. Step 2: Convert to fraction form
    13,441.62/20,162.40 = 3,580.92/x
  3. Step 3: Cross multiply
    13,441.62x = 20,162.40 × 3,580.92
  4. Step 4: Simplify right side
    13,441.62x = 72,199,941.41
  5. Step 5: Solve for x
    x = 72,199,941.41/13,441.62
  6. Step 6: Final answer
    x = 5,371.37

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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.