Home / 20,850.90-31,278.41-6,059.94

Finding the Fourth Proportional to 20,850.90, 31,278.41 and 6,059.94

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Solution

The fourth proportional to 20,850.90, 31,278.41 and 6,059.94 is: 9,090.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,850.90 : 31,278.41 = 6,059.94 : x
  2. Step 2: Convert to fraction form
    20,850.90/31,278.41 = 6,059.94/x
  3. Step 3: Cross multiply
    20,850.90x = 31,278.41 × 6,059.94
  4. Step 4: Simplify right side
    20,850.90x = 189,545,257.60
  5. Step 5: Solve for x
    x = 189,545,257.60/20,850.90
  6. Step 6: Final answer
    x = 9,090.51

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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.