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Finding the Fourth Proportional to 20,577.33, 30,855.49 and 9,474.39

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Solution

The fourth proportional to 20,577.33, 30,855.49 and 9,474.39 is: 14,206.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577.33 : 30,855.49 = 9,474.39 : x
  2. Step 2: Convert to fraction form
    20,577.33/30,855.49 = 9,474.39/x
  3. Step 3: Cross multiply
    20,577.33x = 30,855.49 × 9,474.39
  4. Step 4: Simplify right side
    20,577.33x = 292,336,922.22
  5. Step 5: Solve for x
    x = 292,336,922.22/20,577.33
  6. Step 6: Final answer
    x = 14,206.75

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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.