Home / 20,171.39-30,257.21-7,023.71

Finding the Fourth Proportional to 20,171.39, 30,257.21 and 7,023.71

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Solution

The fourth proportional to 20,171.39, 30,257.21 and 7,023.71 is: 10,535.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,171.39 : 30,257.21 = 7,023.71 : x
  2. Step 2: Convert to fraction form
    20,171.39/30,257.21 = 7,023.71/x
  3. Step 3: Cross multiply
    20,171.39x = 30,257.21 × 7,023.71
  4. Step 4: Simplify right side
    20,171.39x = 212,517,961.65
  5. Step 5: Solve for x
    x = 212,517,961.65/20,171.39
  6. Step 6: Final answer
    x = 10,535.62

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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.