Home / 38,997.31-53,816.25-21,092.35

Finding the Fourth Proportional to 38,997.31, 53,816.25 and 21,092.35

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Solution

The fourth proportional to 38,997.31, 53,816.25 and 21,092.35 is: 29,107.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,997.31 : 53,816.25 = 21,092.35 : x
  2. Step 2: Convert to fraction form
    38,997.31/53,816.25 = 21,092.35/x
  3. Step 3: Cross multiply
    38,997.31x = 53,816.25 × 21,092.35
  4. Step 4: Simplify right side
    38,997.31x = 1,135,111,180.69
  5. Step 5: Solve for x
    x = 1,135,111,180.69/38,997.31
  6. Step 6: Final answer
    x = 29,107.42

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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.