Home / 28,268.73-39,007.53-16,781.85

Finding the Fourth Proportional to 28,268.73, 39,007.53 and 16,781.85

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Solution

The fourth proportional to 28,268.73, 39,007.53 and 16,781.85 is: 23,156.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,268.73 : 39,007.53 = 16,781.85 : x
  2. Step 2: Convert to fraction form
    28,268.73/39,007.53 = 16,781.85/x
  3. Step 3: Cross multiply
    28,268.73x = 39,007.53 × 16,781.85
  4. Step 4: Simplify right side
    28,268.73x = 654,618,517.33
  5. Step 5: Solve for x
    x = 654,618,517.33/28,268.73
  6. Step 6: Final answer
    x = 23,156.98

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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.