Home / 39,844.56-54,983.45-21,936.12

Finding the Fourth Proportional to 39,844.56, 54,983.45 and 21,936.12

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Solution

The fourth proportional to 39,844.56, 54,983.45 and 21,936.12 is: 30,270.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,844.56 : 54,983.45 = 21,936.12 : x
  2. Step 2: Convert to fraction form
    39,844.56/54,983.45 = 21,936.12/x
  3. Step 3: Cross multiply
    39,844.56x = 54,983.45 × 21,936.12
  4. Step 4: Simplify right side
    39,844.56x = 1,206,123,447.53
  5. Step 5: Solve for x
    x = 1,206,123,447.53/39,844.56
  6. Step 6: Final answer
    x = 30,270.72

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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.