Home / 21,159.44-29,202.15-11,729.82

Finding the Fourth Proportional to 21,159.44, 29,202.15 and 11,729.82

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Solution

The fourth proportional to 21,159.44, 29,202.15 and 11,729.82 is: 16,188.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,159.44 : 29,202.15 = 11,729.82 : x
  2. Step 2: Convert to fraction form
    21,159.44/29,202.15 = 11,729.82/x
  3. Step 3: Cross multiply
    21,159.44x = 29,202.15 × 11,729.82
  4. Step 4: Simplify right side
    21,159.44x = 342,535,963.11
  5. Step 5: Solve for x
    x = 342,535,963.11/21,159.44
  6. Step 6: Final answer
    x = 16,188.33

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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.