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Finding the Fourth Proportional to 22,325.74, 30,809.90 and 12,255.12

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Solution

The fourth proportional to 22,325.74, 30,809.90 and 12,255.12 is: 16,912.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,325.74 : 30,809.90 = 12,255.12 : x
  2. Step 2: Convert to fraction form
    22,325.74/30,809.90 = 12,255.12/x
  3. Step 3: Cross multiply
    22,325.74x = 30,809.90 × 12,255.12
  4. Step 4: Simplify right side
    22,325.74x = 377,578,960.41
  5. Step 5: Solve for x
    x = 377,578,960.41/22,325.74
  6. Step 6: Final answer
    x = 16,912.27

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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.