Home / 20,220.44-30,333.90-7,072.52

Finding the Fourth Proportional to 20,220.44, 30,333.90 and 7,072.52

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Solution

The fourth proportional to 20,220.44, 30,333.90 and 7,072.52 is: 10,609.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220.44 : 30,333.90 = 7,072.52 : x
  2. Step 2: Convert to fraction form
    20,220.44/30,333.90 = 7,072.52/x
  3. Step 3: Cross multiply
    20,220.44x = 30,333.90 × 7,072.52
  4. Step 4: Simplify right side
    20,220.44x = 214,537,114.43
  5. Step 5: Solve for x
    x = 214,537,114.43/20,220.44
  6. Step 6: Final answer
    x = 10,609.91

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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.