Home / 20,564.78-30,849.24-5,773.75

Finding the Fourth Proportional to 20,564.78, 30,849.24 and 5,773.75

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Solution

The fourth proportional to 20,564.78, 30,849.24 and 5,773.75 is: 8,661.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,564.78 : 30,849.24 = 5,773.75 : x
  2. Step 2: Convert to fraction form
    20,564.78/30,849.24 = 5,773.75/x
  3. Step 3: Cross multiply
    20,564.78x = 30,849.24 × 5,773.75
  4. Step 4: Simplify right side
    20,564.78x = 178,115,743.98
  5. Step 5: Solve for x
    x = 178,115,743.98/20,564.78
  6. Step 6: Final answer
    x = 8,661.21

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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.