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Finding the Fourth Proportional to 39,801, 54,930.66 and 25,694.84

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Solution

The fourth proportional to 39,801, 54,930.66 and 25,694.84 is: 35,462.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,801 : 54,930.66 = 25,694.84 : x
  2. Step 2: Convert to fraction form
    39,801/54,930.66 = 25,694.84/x
  3. Step 3: Cross multiply
    39,801x = 54,930.66 × 25,694.84
  4. Step 4: Simplify right side
    39,801x = 1,411,434,519.79
  5. Step 5: Solve for x
    x = 1,411,434,519.79/39,801
  6. Step 6: Final answer
    x = 35,462.29

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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.