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Finding the Fourth Proportional to 20,052, 27,672.35 and 11,100.33

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Solution

The fourth proportional to 20,052, 27,672.35 and 11,100.33 is: 15,318.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,052 : 27,672.35 = 11,100.33 : x
  2. Step 2: Convert to fraction form
    20,052/27,672.35 = 11,100.33/x
  3. Step 3: Cross multiply
    20,052x = 27,672.35 × 11,100.33
  4. Step 4: Simplify right side
    20,052x = 307,172,161.37
  5. Step 5: Solve for x
    x = 307,172,161.37/20,052
  6. Step 6: Final answer
    x = 15,318.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.