Home / 21,439.45-32,163.90-7,207.44

Finding the Fourth Proportional to 21,439.45, 32,163.90 and 7,207.44

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Solution

The fourth proportional to 21,439.45, 32,163.90 and 7,207.44 is: 10,812.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,439.45 : 32,163.90 = 7,207.44 : x
  2. Step 2: Convert to fraction form
    21,439.45/32,163.90 = 7,207.44/x
  3. Step 3: Cross multiply
    21,439.45x = 32,163.90 × 7,207.44
  4. Step 4: Simplify right side
    21,439.45x = 231,819,379.42
  5. Step 5: Solve for x
    x = 231,819,379.42/21,439.45
  6. Step 6: Final answer
    x = 10,812.75

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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.