Home / 20,039.36-27,654.58-11,542.97

Finding the Fourth Proportional to 20,039.36, 27,654.58 and 11,542.97

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Solution

The fourth proportional to 20,039.36, 27,654.58 and 11,542.97 is: 15,929.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,039.36 : 27,654.58 = 11,542.97 : x
  2. Step 2: Convert to fraction form
    20,039.36/27,654.58 = 11,542.97/x
  3. Step 3: Cross multiply
    20,039.36x = 27,654.58 × 11,542.97
  4. Step 4: Simplify right side
    20,039.36x = 319,215,987.30
  5. Step 5: Solve for x
    x = 319,215,987.30/20,039.36
  6. Step 6: Final answer
    x = 15,929.45

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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.