Home / 20,155.20-30,244.96-7,016.80

Finding the Fourth Proportional to 20,155.20, 30,244.96 and 7,016.80

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Solution

The fourth proportional to 20,155.20, 30,244.96 and 7,016.80 is: 10,529.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155.20 : 30,244.96 = 7,016.80 : x
  2. Step 2: Convert to fraction form
    20,155.20/30,244.96 = 7,016.80/x
  3. Step 3: Cross multiply
    20,155.20x = 30,244.96 × 7,016.80
  4. Step 4: Simplify right side
    20,155.20x = 212,222,835.33
  5. Step 5: Solve for x
    x = 212,222,835.33/20,155.20
  6. Step 6: Final answer
    x = 10,529.43

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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.