Home / 22,791.13-31,453.33-12,721.53

Finding the Fourth Proportional to 22,791.13, 31,453.33 and 12,721.53

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Solution

The fourth proportional to 22,791.13, 31,453.33 and 12,721.53 is: 17,556.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,791.13 : 31,453.33 = 12,721.53 : x
  2. Step 2: Convert to fraction form
    22,791.13/31,453.33 = 12,721.53/x
  3. Step 3: Cross multiply
    22,791.13x = 31,453.33 × 12,721.53
  4. Step 4: Simplify right side
    22,791.13x = 400,134,323.93
  5. Step 5: Solve for x
    x = 400,134,323.93/22,791.13
  6. Step 6: Final answer
    x = 17,556.59

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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.