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Finding the Fourth Proportional to 22,043.33, 30,418.93 and 11,971.54

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Solution

The fourth proportional to 22,043.33, 30,418.93 and 11,971.54 is: 16,520.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,043.33 : 30,418.93 = 11,971.54 : x
  2. Step 2: Convert to fraction form
    22,043.33/30,418.93 = 11,971.54/x
  3. Step 3: Cross multiply
    22,043.33x = 30,418.93 × 11,971.54
  4. Step 4: Simplify right side
    22,043.33x = 364,161,437.25
  5. Step 5: Solve for x
    x = 364,161,437.25/22,043.33
  6. Step 6: Final answer
    x = 16,520.26

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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.