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Finding the Fourth Proportional to 22,049.76, 30,429.36 and 12,617.76

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Solution

The fourth proportional to 22,049.76, 30,429.36 and 12,617.76 is: 17,412.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,049.76 : 30,429.36 = 12,617.76 : x
  2. Step 2: Convert to fraction form
    22,049.76/30,429.36 = 12,617.76/x
  3. Step 3: Cross multiply
    22,049.76x = 30,429.36 × 12,617.76
  4. Step 4: Simplify right side
    22,049.76x = 383,950,361.43
  5. Step 5: Solve for x
    x = 383,950,361.43/22,049.76
  6. Step 6: Final answer
    x = 17,412.90

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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.