Home / 21,100.26-29,114.94-11,667

Finding the Fourth Proportional to 21,100.26, 29,114.94 and 11,667

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Solution

The fourth proportional to 21,100.26, 29,114.94 and 11,667 is: 16,098.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,100.26 : 29,114.94 = 11,667 : x
  2. Step 2: Convert to fraction form
    21,100.26/29,114.94 = 11,667/x
  3. Step 3: Cross multiply
    21,100.26x = 29,114.94 × 11,667
  4. Step 4: Simplify right side
    21,100.26x = 339,684,004.98
  5. Step 5: Solve for x
    x = 339,684,004.98/21,100.26
  6. Step 6: Final answer
    x = 16,098.57

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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.