Home / 20,936.39-28,892.00-11,504.75

Finding the Fourth Proportional to 20,936.39, 28,892.00 and 11,504.75

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Solution

The fourth proportional to 20,936.39, 28,892.00 and 11,504.75 is: 15,876.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,936.39 : 28,892.00 = 11,504.75 : x
  2. Step 2: Convert to fraction form
    20,936.39/28,892.00 = 11,504.75/x
  3. Step 3: Cross multiply
    20,936.39x = 28,892.00 × 11,504.75
  4. Step 4: Simplify right side
    20,936.39x = 332,395,035.02
  5. Step 5: Solve for x
    x = 332,395,035.02/20,936.39
  6. Step 6: Final answer
    x = 15,876.43

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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.