Home / 39,819.05-59,765.49-20,111.43

Finding the Fourth Proportional to 39,819.05, 59,765.49 and 20,111.43

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Solution

The fourth proportional to 39,819.05, 59,765.49 and 20,111.43 is: 30,185.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,819.05 : 59,765.49 = 20,111.43 : x
  2. Step 2: Convert to fraction form
    39,819.05/59,765.49 = 20,111.43/x
  3. Step 3: Cross multiply
    39,819.05x = 59,765.49 × 20,111.43
  4. Step 4: Simplify right side
    39,819.05x = 1,201,969,468.55
  5. Step 5: Solve for x
    x = 1,201,969,468.55/39,819.05
  6. Step 6: Final answer
    x = 30,185.79

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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.