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Finding the Fourth Proportional to 33,478.71, 50,221.01 and 12,418.98

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Solution

The fourth proportional to 33,478.71, 50,221.01 and 12,418.98 is: 18,629.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,478.71 : 50,221.01 = 12,418.98 : x
  2. Step 2: Convert to fraction form
    33,478.71/50,221.01 = 12,418.98/x
  3. Step 3: Cross multiply
    33,478.71x = 50,221.01 × 12,418.98
  4. Step 4: Simplify right side
    33,478.71x = 623,693,718.77
  5. Step 5: Solve for x
    x = 623,693,718.77/33,478.71
  6. Step 6: Final answer
    x = 18,629.56

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.