Home / 20,571.04-30,854.12-5,372.60

Finding the Fourth Proportional to 20,571.04, 30,854.12 and 5,372.60

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Solution

The fourth proportional to 20,571.04, 30,854.12 and 5,372.60 is: 8,058.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,571.04 : 30,854.12 = 5,372.60 : x
  2. Step 2: Convert to fraction form
    20,571.04/30,854.12 = 5,372.60/x
  3. Step 3: Cross multiply
    20,571.04x = 30,854.12 × 5,372.60
  4. Step 4: Simplify right side
    20,571.04x = 165,766,895.38
  5. Step 5: Solve for x
    x = 165,766,895.38/20,571.04
  6. Step 6: Final answer
    x = 8,058.27

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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.