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Finding the Fourth Proportional to 20,195.58, 30,297.47 and 8,508.80

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Solution

The fourth proportional to 20,195.58, 30,297.47 and 8,508.80 is: 12,764.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.58 : 30,297.47 = 8,508.80 : x
  2. Step 2: Convert to fraction form
    20,195.58/30,297.47 = 8,508.80/x
  3. Step 3: Cross multiply
    20,195.58x = 30,297.47 × 8,508.80
  4. Step 4: Simplify right side
    20,195.58x = 257,794,999.44
  5. Step 5: Solve for x
    x = 257,794,999.44/20,195.58
  6. Step 6: Final answer
    x = 12,764.92

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.