Home / 20,112.29-30,170.20-7,462.19

Finding the Fourth Proportional to 20,112.29, 30,170.20 and 7,462.19

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Solution

The fourth proportional to 20,112.29, 30,170.20 and 7,462.19 is: 11,193.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,112.29 : 30,170.20 = 7,462.19 : x
  2. Step 2: Convert to fraction form
    20,112.29/30,170.20 = 7,462.19/x
  3. Step 3: Cross multiply
    20,112.29x = 30,170.20 × 7,462.19
  4. Step 4: Simplify right side
    20,112.29x = 225,135,764.74
  5. Step 5: Solve for x
    x = 225,135,764.74/20,112.29
  6. Step 6: Final answer
    x = 11,193.94

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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.