Home / 39,777.27-54,892.83-21,873.43

Finding the Fourth Proportional to 39,777.27, 54,892.83 and 21,873.43

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Solution

The fourth proportional to 39,777.27, 54,892.83 and 21,873.43 is: 30,185.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,777.27 : 54,892.83 = 21,873.43 : x
  2. Step 2: Convert to fraction form
    39,777.27/54,892.83 = 21,873.43/x
  3. Step 3: Cross multiply
    39,777.27x = 54,892.83 × 21,873.43
  4. Step 4: Simplify right side
    39,777.27x = 1,200,694,474.51
  5. Step 5: Solve for x
    x = 1,200,694,474.51/39,777.27
  6. Step 6: Final answer
    x = 30,185.44

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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.