Home / 21,163.44-31,745.70-6,372.84

Finding the Fourth Proportional to 21,163.44, 31,745.70 and 6,372.84

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Solution

The fourth proportional to 21,163.44, 31,745.70 and 6,372.84 is: 9,559.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,163.44 : 31,745.70 = 6,372.84 : x
  2. Step 2: Convert to fraction form
    21,163.44/31,745.70 = 6,372.84/x
  3. Step 3: Cross multiply
    21,163.44x = 31,745.70 × 6,372.84
  4. Step 4: Simplify right side
    21,163.44x = 202,310,266.79
  5. Step 5: Solve for x
    x = 202,310,266.79/21,163.44
  6. Step 6: Final answer
    x = 9,559.42

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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.