Home / 20,144.44-30,215.75-6,997.84

Finding the Fourth Proportional to 20,144.44, 30,215.75 and 6,997.84

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Solution

The fourth proportional to 20,144.44, 30,215.75 and 6,997.84 is: 10,496.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.44 : 30,215.75 = 6,997.84 : x
  2. Step 2: Convert to fraction form
    20,144.44/30,215.75 = 6,997.84/x
  3. Step 3: Cross multiply
    20,144.44x = 30,215.75 × 6,997.84
  4. Step 4: Simplify right side
    20,144.44x = 211,444,983.98
  5. Step 5: Solve for x
    x = 211,444,983.98/20,144.44
  6. Step 6: Final answer
    x = 10,496.44

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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.