Home / 20,560.43-30,839.06-5,768.75

Finding the Fourth Proportional to 20,560.43, 30,839.06 and 5,768.75

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Solution

The fourth proportional to 20,560.43, 30,839.06 and 5,768.75 is: 8,652.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,560.43 : 30,839.06 = 5,768.75 : x
  2. Step 2: Convert to fraction form
    20,560.43/30,839.06 = 5,768.75/x
  3. Step 3: Cross multiply
    20,560.43x = 30,839.06 × 5,768.75
  4. Step 4: Simplify right side
    20,560.43x = 177,902,918.89
  5. Step 5: Solve for x
    x = 177,902,918.89/20,560.43
  6. Step 6: Final answer
    x = 8,652.68

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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.