Home / 28,399.36-39,196.97-18,839.83

Finding the Fourth Proportional to 28,399.36, 39,196.97 and 18,839.83

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Solution

The fourth proportional to 28,399.36, 39,196.97 and 18,839.83 is: 26,002.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,399.36 : 39,196.97 = 18,839.83 : x
  2. Step 2: Convert to fraction form
    28,399.36/39,196.97 = 18,839.83/x
  3. Step 3: Cross multiply
    28,399.36x = 39,196.97 × 18,839.83
  4. Step 4: Simplify right side
    28,399.36x = 738,464,251.32
  5. Step 5: Solve for x
    x = 738,464,251.32/28,399.36
  6. Step 6: Final answer
    x = 26,002.85

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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.