Home / 28,663.67-39,556.26-15,744

Finding the Fourth Proportional to 28,663.67, 39,556.26 and 15,744

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Solution

The fourth proportional to 28,663.67, 39,556.26 and 15,744 is: 21,726.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,663.67 : 39,556.26 = 15,744 : x
  2. Step 2: Convert to fraction form
    28,663.67/39,556.26 = 15,744/x
  3. Step 3: Cross multiply
    28,663.67x = 39,556.26 × 15,744
  4. Step 4: Simplify right side
    28,663.67x = 622,773,757.44
  5. Step 5: Solve for x
    x = 622,773,757.44/28,663.67
  6. Step 6: Final answer
    x = 21,726.94

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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.