Home / 38,170.98-52,676.78-21,174.66

Finding the Fourth Proportional to 38,170.98, 52,676.78 and 21,174.66

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Solution

The fourth proportional to 38,170.98, 52,676.78 and 21,174.66 is: 29,221.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,170.98 : 52,676.78 = 21,174.66 : x
  2. Step 2: Convert to fraction form
    38,170.98/52,676.78 = 21,174.66/x
  3. Step 3: Cross multiply
    38,170.98x = 52,676.78 × 21,174.66
  4. Step 4: Simplify right side
    38,170.98x = 1,115,412,906.39
  5. Step 5: Solve for x
    x = 1,115,412,906.39/38,170.98
  6. Step 6: Final answer
    x = 29,221.49

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Half scale
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Double scale
Find fourth proportional to 38,171.98, 52,678.16 and 21,175.66
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.