Home / 20,057.78-30,087.03-5,267.96

Finding the Fourth Proportional to 20,057.78, 30,087.03 and 5,267.96

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Solution

The fourth proportional to 20,057.78, 30,087.03 and 5,267.96 is: 7,902.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,057.78 : 30,087.03 = 5,267.96 : x
  2. Step 2: Convert to fraction form
    20,057.78/30,087.03 = 5,267.96/x
  3. Step 3: Cross multiply
    20,057.78x = 30,087.03 × 5,267.96
  4. Step 4: Simplify right side
    20,057.78x = 158,497,270.56
  5. Step 5: Solve for x
    x = 158,497,270.56/20,057.78
  6. Step 6: Final answer
    x = 7,902.03

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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.