Home / 27,662.22-38,174.22-15,087.78

Finding the Fourth Proportional to 27,662.22, 38,174.22 and 15,087.78

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Solution

The fourth proportional to 27,662.22, 38,174.22 and 15,087.78 is: 20,821.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,662.22 : 38,174.22 = 15,087.78 : x
  2. Step 2: Convert to fraction form
    27,662.22/38,174.22 = 15,087.78/x
  3. Step 3: Cross multiply
    27,662.22x = 38,174.22 × 15,087.78
  4. Step 4: Simplify right side
    27,662.22x = 575,964,233.03
  5. Step 5: Solve for x
    x = 575,964,233.03/27,662.22
  6. Step 6: Final answer
    x = 20,821.33

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Half scale
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Double scale
Find fourth proportional to 27,663.22, 38,175.60 and 15,088.78
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.