Home / 20,589.12-30,936.33-19,393.97

Finding the Fourth Proportional to 20,589.12, 30,936.33 and 19,393.97

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Solution

The fourth proportional to 20,589.12, 30,936.33 and 19,393.97 is: 29,140.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,589.12 : 30,936.33 = 19,393.97 : x
  2. Step 2: Convert to fraction form
    20,589.12/30,936.33 = 19,393.97/x
  3. Step 3: Cross multiply
    20,589.12x = 30,936.33 × 19,393.97
  4. Step 4: Simplify right side
    20,589.12x = 599,978,101.25
  5. Step 5: Solve for x
    x = 599,978,101.25/20,589.12
  6. Step 6: Final answer
    x = 29,140.54

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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.