Home / 21,367.86-29,488.26-11,936.22

Finding the Fourth Proportional to 21,367.86, 29,488.26 and 11,936.22

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Solution

The fourth proportional to 21,367.86, 29,488.26 and 11,936.22 is: 16,472.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,367.86 : 29,488.26 = 11,936.22 : x
  2. Step 2: Convert to fraction form
    21,367.86/29,488.26 = 11,936.22/x
  3. Step 3: Cross multiply
    21,367.86x = 29,488.26 × 11,936.22
  4. Step 4: Simplify right side
    21,367.86x = 351,978,358.78
  5. Step 5: Solve for x
    x = 351,978,358.78/21,367.86
  6. Step 6: Final answer
    x = 16,472.33

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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.