Home / 20,162.20-30,243.30-15,496.60

Finding the Fourth Proportional to 20,162.20, 30,243.30 and 15,496.60

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Solution

The fourth proportional to 20,162.20, 30,243.30 and 15,496.60 is: 23,244.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162.20 : 30,243.30 = 15,496.60 : x
  2. Step 2: Convert to fraction form
    20,162.20/30,243.30 = 15,496.60/x
  3. Step 3: Cross multiply
    20,162.20x = 30,243.30 × 15,496.60
  4. Step 4: Simplify right side
    20,162.20x = 468,668,322.78
  5. Step 5: Solve for x
    x = 468,668,322.78/20,162.20
  6. Step 6: Final answer
    x = 23,244.90

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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.