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Finding the Fourth Proportional to 22,212.62, 30,653.79 and 12,141.48

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Solution

The fourth proportional to 22,212.62, 30,653.79 and 12,141.48 is: 16,755.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,212.62 : 30,653.79 = 12,141.48 : x
  2. Step 2: Convert to fraction form
    22,212.62/30,653.79 = 12,141.48/x
  3. Step 3: Cross multiply
    22,212.62x = 30,653.79 × 12,141.48
  4. Step 4: Simplify right side
    22,212.62x = 372,182,378.21
  5. Step 5: Solve for x
    x = 372,182,378.21/22,212.62
  6. Step 6: Final answer
    x = 16,755.45

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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.