Home / 39,776.92-54,893.40-21,873.22

Finding the Fourth Proportional to 39,776.92, 54,893.40 and 21,873.22

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Solution

The fourth proportional to 39,776.92, 54,893.40 and 21,873.22 is: 30,185.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,776.92 : 54,893.40 = 21,873.22 : x
  2. Step 2: Convert to fraction form
    39,776.92/54,893.40 = 21,873.22/x
  3. Step 3: Cross multiply
    39,776.92x = 54,893.40 × 21,873.22
  4. Step 4: Simplify right side
    39,776.92x = 1,200,695,414.75
  5. Step 5: Solve for x
    x = 1,200,695,414.75/39,776.92
  6. Step 6: Final answer
    x = 30,185.73

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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.