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Finding the Fourth Proportional to 36,819, 55,227.29 and 11,860.47

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Solution

The fourth proportional to 36,819, 55,227.29 and 11,860.47 is: 17,790.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,819 : 55,227.29 = 11,860.47 : x
  2. Step 2: Convert to fraction form
    36,819/55,227.29 = 11,860.47/x
  3. Step 3: Cross multiply
    36,819x = 55,227.29 × 11,860.47
  4. Step 4: Simplify right side
    36,819x = 655,021,556.92
  5. Step 5: Solve for x
    x = 655,021,556.92/36,819
  6. Step 6: Final answer
    x = 17,790.31

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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.