Home / 20,201.07-30,302.09-6,874.03

Finding the Fourth Proportional to 20,201.07, 30,302.09 and 6,874.03

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Solution

The fourth proportional to 20,201.07, 30,302.09 and 6,874.03 is: 10,311.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,201.07 : 30,302.09 = 6,874.03 : x
  2. Step 2: Convert to fraction form
    20,201.07/30,302.09 = 6,874.03/x
  3. Step 3: Cross multiply
    20,201.07x = 30,302.09 × 6,874.03
  4. Step 4: Simplify right side
    20,201.07x = 208,297,475.72
  5. Step 5: Solve for x
    x = 208,297,475.72/20,201.07
  6. Step 6: Final answer
    x = 10,311.21

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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.