Home / 26,382.82-39,539.78-20,119.90

Finding the Fourth Proportional to 26,382.82, 39,539.78 and 20,119.90

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Solution

The fourth proportional to 26,382.82, 39,539.78 and 20,119.90 is: 30,153.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,382.82 : 39,539.78 = 20,119.90 : x
  2. Step 2: Convert to fraction form
    26,382.82/39,539.78 = 20,119.90/x
  3. Step 3: Cross multiply
    26,382.82x = 39,539.78 × 20,119.90
  4. Step 4: Simplify right side
    26,382.82x = 795,536,419.62
  5. Step 5: Solve for x
    x = 795,536,419.62/26,382.82
  6. Step 6: Final answer
    x = 30,153.58

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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.