Home / 36,383.60-54,546.36-20,578.88

Finding the Fourth Proportional to 36,383.60, 54,546.36 and 20,578.88

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Solution

The fourth proportional to 36,383.60, 54,546.36 and 20,578.88 is: 30,851.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,383.60 : 54,546.36 = 20,578.88 : x
  2. Step 2: Convert to fraction form
    36,383.60/54,546.36 = 20,578.88/x
  3. Step 3: Cross multiply
    36,383.60x = 54,546.36 × 20,578.88
  4. Step 4: Simplify right side
    36,383.60x = 1,122,502,996.88
  5. Step 5: Solve for x
    x = 1,122,502,996.88/36,383.60
  6. Step 6: Final answer
    x = 30,851.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.