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Finding the Fourth Proportional to 22,351.51, 30,845.60 and 12,280.58

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Solution

The fourth proportional to 22,351.51, 30,845.60 and 12,280.58 is: 16,947.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,351.51 : 30,845.60 = 12,280.58 : x
  2. Step 2: Convert to fraction form
    22,351.51/30,845.60 = 12,280.58/x
  3. Step 3: Cross multiply
    22,351.51x = 30,845.60 × 12,280.58
  4. Step 4: Simplify right side
    22,351.51x = 378,801,858.45
  5. Step 5: Solve for x
    x = 378,801,858.45/22,351.51
  6. Step 6: Final answer
    x = 16,947.48

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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.