Home / 26,719.88-40,078.40-13,571.96

Finding the Fourth Proportional to 26,719.88, 40,078.40 and 13,571.96

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Solution

The fourth proportional to 26,719.88, 40,078.40 and 13,571.96 is: 20,357.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,719.88 : 40,078.40 = 13,571.96 : x
  2. Step 2: Convert to fraction form
    26,719.88/40,078.40 = 13,571.96/x
  3. Step 3: Cross multiply
    26,719.88x = 40,078.40 × 13,571.96
  4. Step 4: Simplify right side
    26,719.88x = 543,942,173.41
  5. Step 5: Solve for x
    x = 543,942,173.41/26,719.88
  6. Step 6: Final answer
    x = 20,357.21

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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.