Home / 28,441.09-39,249.42-15,694.51

Finding the Fourth Proportional to 28,441.09, 39,249.42 and 15,694.51

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Solution

The fourth proportional to 28,441.09, 39,249.42 and 15,694.51 is: 21,658.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,441.09 : 39,249.42 = 15,694.51 : x
  2. Step 2: Convert to fraction form
    28,441.09/39,249.42 = 15,694.51/x
  3. Step 3: Cross multiply
    28,441.09x = 39,249.42 × 15,694.51
  4. Step 4: Simplify right side
    28,441.09x = 616,000,414.68
  5. Step 5: Solve for x
    x = 616,000,414.68/28,441.09
  6. Step 6: Final answer
    x = 21,658.82

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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.