Home / 21,134.22-29,164.87-11,702.58

Finding the Fourth Proportional to 21,134.22, 29,164.87 and 11,702.58

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Solution

The fourth proportional to 21,134.22, 29,164.87 and 11,702.58 is: 16,149.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,134.22 : 29,164.87 = 11,702.58 : x
  2. Step 2: Convert to fraction form
    21,134.22/29,164.87 = 11,702.58/x
  3. Step 3: Cross multiply
    21,134.22x = 29,164.87 × 11,702.58
  4. Step 4: Simplify right side
    21,134.22x = 341,304,165.85
  5. Step 5: Solve for x
    x = 341,304,165.85/21,134.22
  6. Step 6: Final answer
    x = 16,149.36

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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.