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Finding the Fourth Proportional to 20,698, 31,050.24 and 6,850.24

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Solution

The fourth proportional to 20,698, 31,050.24 and 6,850.24 is: 10,276.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698 : 31,050.24 = 6,850.24 : x
  2. Step 2: Convert to fraction form
    20,698/31,050.24 = 6,850.24/x
  3. Step 3: Cross multiply
    20,698x = 31,050.24 × 6,850.24
  4. Step 4: Simplify right side
    20,698x = 212,701,596.06
  5. Step 5: Solve for x
    x = 212,701,596.06/20,698
  6. Step 6: Final answer
    x = 10,276.43

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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.