Home / 39,089.05-53,942.92-21,183.89

Finding the Fourth Proportional to 39,089.05, 53,942.92 and 21,183.89

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Solution

The fourth proportional to 39,089.05, 53,942.92 and 21,183.89 is: 29,233.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,089.05 : 53,942.92 = 21,183.89 : x
  2. Step 2: Convert to fraction form
    39,089.05/53,942.92 = 21,183.89/x
  3. Step 3: Cross multiply
    39,089.05x = 53,942.92 × 21,183.89
  4. Step 4: Simplify right side
    39,089.05x = 1,142,720,560.88
  5. Step 5: Solve for x
    x = 1,142,720,560.88/39,089.05
  6. Step 6: Final answer
    x = 29,233.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.