Home / 28,651.39-39,512.82-18,569.32

Finding the Fourth Proportional to 28,651.39, 39,512.82 and 18,569.32

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Solution

The fourth proportional to 28,651.39, 39,512.82 and 18,569.32 is: 25,608.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,651.39 : 39,512.82 = 18,569.32 : x
  2. Step 2: Convert to fraction form
    28,651.39/39,512.82 = 18,569.32/x
  3. Step 3: Cross multiply
    28,651.39x = 39,512.82 × 18,569.32
  4. Step 4: Simplify right side
    28,651.39x = 733,726,198.68
  5. Step 5: Solve for x
    x = 733,726,198.68/28,651.39
  6. Step 6: Final answer
    x = 25,608.75

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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.