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Finding the Fourth Proportional to 22,306.01, 30,782.25 and 12,874.56

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Solution

The fourth proportional to 22,306.01, 30,782.25 and 12,874.56 is: 17,766.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,306.01 : 30,782.25 = 12,874.56 : x
  2. Step 2: Convert to fraction form
    22,306.01/30,782.25 = 12,874.56/x
  3. Step 3: Cross multiply
    22,306.01x = 30,782.25 × 12,874.56
  4. Step 4: Simplify right side
    22,306.01x = 396,307,924.56
  5. Step 5: Solve for x
    x = 396,307,924.56/22,306.01
  6. Step 6: Final answer
    x = 17,766.87

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.