Home / 20,936.82-28,892.03-11,984.09

Finding the Fourth Proportional to 20,936.82, 28,892.03 and 11,984.09

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Solution

The fourth proportional to 20,936.82, 28,892.03 and 11,984.09 is: 16,537.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,936.82 : 28,892.03 = 11,984.09 : x
  2. Step 2: Convert to fraction form
    20,936.82/28,892.03 = 11,984.09/x
  3. Step 3: Cross multiply
    20,936.82x = 28,892.03 × 11,984.09
  4. Step 4: Simplify right side
    20,936.82x = 346,244,687.80
  5. Step 5: Solve for x
    x = 346,244,687.80/20,936.82
  6. Step 6: Final answer
    x = 16,537.60

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1.5x scale

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.