Home / 20,171.28-30,247.32-7,022.04

Finding the Fourth Proportional to 20,171.28, 30,247.32 and 7,022.04

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Solution

The fourth proportional to 20,171.28, 30,247.32 and 7,022.04 is: 10,529.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,171.28 : 30,247.32 = 7,022.04 : x
  2. Step 2: Convert to fraction form
    20,171.28/30,247.32 = 7,022.04/x
  3. Step 3: Cross multiply
    20,171.28x = 30,247.32 × 7,022.04
  4. Step 4: Simplify right side
    20,171.28x = 212,397,890.93
  5. Step 5: Solve for x
    x = 212,397,890.93/20,171.28
  6. Step 6: Final answer
    x = 10,529.72

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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.