Home / 39,836.98-54,975.39-21,932.38

Finding the Fourth Proportional to 39,836.98, 54,975.39 and 21,932.38

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Solution

The fourth proportional to 39,836.98, 54,975.39 and 21,932.38 is: 30,266.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,836.98 : 54,975.39 = 21,932.38 : x
  2. Step 2: Convert to fraction form
    39,836.98/54,975.39 = 21,932.38/x
  3. Step 3: Cross multiply
    39,836.98x = 54,975.39 × 21,932.38
  4. Step 4: Simplify right side
    39,836.98x = 1,205,740,869.25
  5. Step 5: Solve for x
    x = 1,205,740,869.25/39,836.98
  6. Step 6: Final answer
    x = 30,266.88

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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.