Home / 26,855.55-40,296.69-20,321.82

Finding the Fourth Proportional to 26,855.55, 40,296.69 and 20,321.82

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Solution

The fourth proportional to 26,855.55, 40,296.69 and 20,321.82 is: 30,492.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,855.55 : 40,296.69 = 20,321.82 : x
  2. Step 2: Convert to fraction form
    26,855.55/40,296.69 = 20,321.82/x
  3. Step 3: Cross multiply
    26,855.55x = 40,296.69 × 20,321.82
  4. Step 4: Simplify right side
    26,855.55x = 818,902,080.78
  5. Step 5: Solve for x
    x = 818,902,080.78/26,855.55
  6. Step 6: Final answer
    x = 30,492.84

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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.