Home / 20,822.88-28,735.82-11,262.96

Finding the Fourth Proportional to 20,822.88, 28,735.82 and 11,262.96

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Solution

The fourth proportional to 20,822.88, 28,735.82 and 11,262.96 is: 15,543.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,822.88 : 28,735.82 = 11,262.96 : x
  2. Step 2: Convert to fraction form
    20,822.88/28,735.82 = 11,262.96/x
  3. Step 3: Cross multiply
    20,822.88x = 28,735.82 × 11,262.96
  4. Step 4: Simplify right side
    20,822.88x = 323,650,406.75
  5. Step 5: Solve for x
    x = 323,650,406.75/20,822.88
  6. Step 6: Final answer
    x = 15,543.02

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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.