Home / 39,398.97-54,370.59-21,494.05

Finding the Fourth Proportional to 39,398.97, 54,370.59 and 21,494.05

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Solution

The fourth proportional to 39,398.97, 54,370.59 and 21,494.05 is: 29,661.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,398.97 : 54,370.59 = 21,494.05 : x
  2. Step 2: Convert to fraction form
    39,398.97/54,370.59 = 21,494.05/x
  3. Step 3: Cross multiply
    39,398.97x = 54,370.59 × 21,494.05
  4. Step 4: Simplify right side
    39,398.97x = 1,168,644,179.99
  5. Step 5: Solve for x
    x = 1,168,644,179.99/39,398.97
  6. Step 6: Final answer
    x = 29,661.80

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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.