Home / 20,267.75-30,381.10-9,722.27

Finding the Fourth Proportional to 20,267.75, 30,381.10 and 9,722.27

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Solution

The fourth proportional to 20,267.75, 30,381.10 and 9,722.27 is: 14,573.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,267.75 : 30,381.10 = 9,722.27 : x
  2. Step 2: Convert to fraction form
    20,267.75/30,381.10 = 9,722.27/x
  3. Step 3: Cross multiply
    20,267.75x = 30,381.10 × 9,722.27
  4. Step 4: Simplify right side
    20,267.75x = 295,373,257.10
  5. Step 5: Solve for x
    x = 295,373,257.10/20,267.75
  6. Step 6: Final answer
    x = 14,573.56

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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.