Home / 20,107.44-30,150.20-6,958.72

Finding the Fourth Proportional to 20,107.44, 30,150.20 and 6,958.72

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Solution

The fourth proportional to 20,107.44, 30,150.20 and 6,958.72 is: 10,434.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,107.44 : 30,150.20 = 6,958.72 : x
  2. Step 2: Convert to fraction form
    20,107.44/30,150.20 = 6,958.72/x
  3. Step 3: Cross multiply
    20,107.44x = 30,150.20 × 6,958.72
  4. Step 4: Simplify right side
    20,107.44x = 209,806,799.74
  5. Step 5: Solve for x
    x = 209,806,799.74/20,107.44
  6. Step 6: Final answer
    x = 10,434.29

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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.