Home / 20,190.26-27,846.78-13,118.96

Finding the Fourth Proportional to 20,190.26, 27,846.78 and 13,118.96

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Solution

The fourth proportional to 20,190.26, 27,846.78 and 13,118.96 is: 18,093.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.26 : 27,846.78 = 13,118.96 : x
  2. Step 2: Convert to fraction form
    20,190.26/27,846.78 = 13,118.96/x
  3. Step 3: Cross multiply
    20,190.26x = 27,846.78 × 13,118.96
  4. Step 4: Simplify right side
    20,190.26x = 365,320,792.95
  5. Step 5: Solve for x
    x = 365,320,792.95/20,190.26
  6. Step 6: Final answer
    x = 18,093.91

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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.