Home / 20,040.71-30,062.84-5,249.57

Finding the Fourth Proportional to 20,040.71, 30,062.84 and 5,249.57

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Solution

The fourth proportional to 20,040.71, 30,062.84 and 5,249.57 is: 7,874.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.71 : 30,062.84 = 5,249.57 : x
  2. Step 2: Convert to fraction form
    20,040.71/30,062.84 = 5,249.57/x
  3. Step 3: Cross multiply
    20,040.71x = 30,062.84 × 5,249.57
  4. Step 4: Simplify right side
    20,040.71x = 157,816,806.42
  5. Step 5: Solve for x
    x = 157,816,806.42/20,040.71
  6. Step 6: Final answer
    x = 7,874.81

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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.