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Finding the Fourth Proportional to 22,406.25, 30,920.09 and 12,334.61

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Solution

The fourth proportional to 22,406.25, 30,920.09 and 12,334.61 is: 17,021.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,406.25 : 30,920.09 = 12,334.61 : x
  2. Step 2: Convert to fraction form
    22,406.25/30,920.09 = 12,334.61/x
  3. Step 3: Cross multiply
    22,406.25x = 30,920.09 × 12,334.61
  4. Step 4: Simplify right side
    22,406.25x = 381,387,266.94
  5. Step 5: Solve for x
    x = 381,387,266.94/22,406.25
  6. Step 6: Final answer
    x = 17,021.47

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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.