Home / 39,799.01-54,921.80-21,893.69

Finding the Fourth Proportional to 39,799.01, 54,921.80 and 21,893.69

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Solution

The fourth proportional to 39,799.01, 54,921.80 and 21,893.69 is: 30,212.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,799.01 : 54,921.80 = 21,893.69 : x
  2. Step 2: Convert to fraction form
    39,799.01/54,921.80 = 21,893.69/x
  3. Step 3: Cross multiply
    39,799.01x = 54,921.80 × 21,893.69
  4. Step 4: Simplify right side
    39,799.01x = 1,202,440,753.97
  5. Step 5: Solve for x
    x = 1,202,440,753.97/39,799.01
  6. Step 6: Final answer
    x = 30,212.83

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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.