Home / 28,443.82-39,249.75-15,869.38

Finding the Fourth Proportional to 28,443.82, 39,249.75 and 15,869.38

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Solution

The fourth proportional to 28,443.82, 39,249.75 and 15,869.38 is: 21,898.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,443.82 : 39,249.75 = 15,869.38 : x
  2. Step 2: Convert to fraction form
    28,443.82/39,249.75 = 15,869.38/x
  3. Step 3: Cross multiply
    28,443.82x = 39,249.75 × 15,869.38
  4. Step 4: Simplify right side
    28,443.82x = 622,869,197.66
  5. Step 5: Solve for x
    x = 622,869,197.66/28,443.82
  6. Step 6: Final answer
    x = 21,898.23

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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.