Home / 20,262.48-27,960-11,767.44

Finding the Fourth Proportional to 20,262.48, 27,960 and 11,767.44

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Solution

The fourth proportional to 20,262.48, 27,960 and 11,767.44 is: 16,237.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,262.48 : 27,960 = 11,767.44 : x
  2. Step 2: Convert to fraction form
    20,262.48/27,960 = 11,767.44/x
  3. Step 3: Cross multiply
    20,262.48x = 27,960 × 11,767.44
  4. Step 4: Simplify right side
    20,262.48x = 329,017,622.40
  5. Step 5: Solve for x
    x = 329,017,622.40/20,262.48
  6. Step 6: Final answer
    x = 16,237.78

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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.