Home / 43,578.72-65,393.28-20,203.92

Finding the Fourth Proportional to 43,578.72, 65,393.28 and 20,203.92

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Solution

The fourth proportional to 43,578.72, 65,393.28 and 20,203.92 is: 30,317.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,578.72 : 65,393.28 = 20,203.92 : x
  2. Step 2: Convert to fraction form
    43,578.72/65,393.28 = 20,203.92/x
  3. Step 3: Cross multiply
    43,578.72x = 65,393.28 × 20,203.92
  4. Step 4: Simplify right side
    43,578.72x = 1,321,200,597.66
  5. Step 5: Solve for x
    x = 1,321,200,597.66/43,578.72
  6. Step 6: Final answer
    x = 30,317.56

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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.