Home / 27,850.80-41,778.66-7,860.47

Finding the Fourth Proportional to 27,850.80, 41,778.66 and 7,860.47

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Solution

The fourth proportional to 27,850.80, 41,778.66 and 7,860.47 is: 11,791.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,850.80 : 41,778.66 = 7,860.47 : x
  2. Step 2: Convert to fraction form
    27,850.80/41,778.66 = 7,860.47/x
  3. Step 3: Cross multiply
    27,850.80x = 41,778.66 × 7,860.47
  4. Step 4: Simplify right side
    27,850.80x = 328,399,903.57
  5. Step 5: Solve for x
    x = 328,399,903.57/27,850.80
  6. Step 6: Final answer
    x = 11,791.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.