Home / 13,769.82-20,654.73-3,381.57

Finding the Fourth Proportional to 13,769.82, 20,654.73 and 3,381.57

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Solution

The fourth proportional to 13,769.82, 20,654.73 and 3,381.57 is: 5,072.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.82 : 20,654.73 = 3,381.57 : x
  2. Step 2: Convert to fraction form
    13,769.82/20,654.73 = 3,381.57/x
  3. Step 3: Cross multiply
    13,769.82x = 20,654.73 × 3,381.57
  4. Step 4: Simplify right side
    13,769.82x = 69,845,415.33
  5. Step 5: Solve for x
    x = 69,845,415.33/13,769.82
  6. Step 6: Final answer
    x = 5,072.36

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Why These Related Problems?

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