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Finding the Fourth Proportional to 27,906.40, 41,860.82 and 13,873.15

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Solution

The fourth proportional to 27,906.40, 41,860.82 and 13,873.15 is: 20,810.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,906.40 : 41,860.82 = 13,873.15 : x
  2. Step 2: Convert to fraction form
    27,906.40/41,860.82 = 13,873.15/x
  3. Step 3: Cross multiply
    27,906.40x = 41,860.82 × 13,873.15
  4. Step 4: Simplify right side
    27,906.40x = 580,741,434.98
  5. Step 5: Solve for x
    x = 580,741,434.98/27,906.40
  6. Step 6: Final answer
    x = 20,810.33

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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.