Home / 10,820.70-16,231.23-3,425.22

Finding the Fourth Proportional to 10,820.70, 16,231.23 and 3,425.22

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Solution

The fourth proportional to 10,820.70, 16,231.23 and 3,425.22 is: 5,137.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,820.70 : 16,231.23 = 3,425.22 : x
  2. Step 2: Convert to fraction form
    10,820.70/16,231.23 = 3,425.22/x
  3. Step 3: Cross multiply
    10,820.70x = 16,231.23 × 3,425.22
  4. Step 4: Simplify right side
    10,820.70x = 55,595,533.62
  5. Step 5: Solve for x
    x = 55,595,533.62/10,820.70
  6. Step 6: Final answer
    x = 5,137.89

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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.