Home / 20,378.22-30,571.73-6,337.98

Finding the Fourth Proportional to 20,378.22, 30,571.73 and 6,337.98

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Solution

The fourth proportional to 20,378.22, 30,571.73 and 6,337.98 is: 9,508.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,378.22 : 30,571.73 = 6,337.98 : x
  2. Step 2: Convert to fraction form
    20,378.22/30,571.73 = 6,337.98/x
  3. Step 3: Cross multiply
    20,378.22x = 30,571.73 × 6,337.98
  4. Step 4: Simplify right side
    20,378.22x = 193,763,005.38
  5. Step 5: Solve for x
    x = 193,763,005.38/20,378.22
  6. Step 6: Final answer
    x = 9,508.34

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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.