Home / 20,716.67-31,052.66-10,174.43

Finding the Fourth Proportional to 20,716.67, 31,052.66 and 10,174.43

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Solution

The fourth proportional to 20,716.67, 31,052.66 and 10,174.43 is: 15,250.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,716.67 : 31,052.66 = 10,174.43 : x
  2. Step 2: Convert to fraction form
    20,716.67/31,052.66 = 10,174.43/x
  3. Step 3: Cross multiply
    20,716.67x = 31,052.66 × 10,174.43
  4. Step 4: Simplify right side
    20,716.67x = 315,942,909.35
  5. Step 5: Solve for x
    x = 315,942,909.35/20,716.67
  6. Step 6: Final answer
    x = 15,250.66

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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.