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Finding the Fourth Proportional to 33,122.63, 45,709.25 and 18,218.63

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Solution

The fourth proportional to 33,122.63, 45,709.25 and 18,218.63 is: 25,141.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,122.63 : 45,709.25 = 18,218.63 : x
  2. Step 2: Convert to fraction form
    33,122.63/45,709.25 = 18,218.63/x
  3. Step 3: Cross multiply
    33,122.63x = 45,709.25 × 18,218.63
  4. Step 4: Simplify right side
    33,122.63x = 832,759,593.69
  5. Step 5: Solve for x
    x = 832,759,593.69/33,122.63
  6. Step 6: Final answer
    x = 25,141.71

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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.