Home / 27,665.68-38,179.56-15,091.12

Finding the Fourth Proportional to 27,665.68, 38,179.56 and 15,091.12

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Solution

The fourth proportional to 27,665.68, 38,179.56 and 15,091.12 is: 20,826.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,665.68 : 38,179.56 = 15,091.12 : x
  2. Step 2: Convert to fraction form
    27,665.68/38,179.56 = 15,091.12/x
  3. Step 3: Cross multiply
    27,665.68x = 38,179.56 × 15,091.12
  4. Step 4: Simplify right side
    27,665.68x = 576,172,321.51
  5. Step 5: Solve for x
    x = 576,172,321.51/27,665.68
  6. Step 6: Final answer
    x = 20,826.25

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Half scale
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Double scale
Find fourth proportional to 27,666.68, 38,180.94 and 15,092.12
Similar ratio
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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.