Home / 22,791.19-31,453.42-12,721.59

Finding the Fourth Proportional to 22,791.19, 31,453.42 and 12,721.59

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Solution

The fourth proportional to 22,791.19, 31,453.42 and 12,721.59 is: 17,556.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,791.19 : 31,453.42 = 12,721.59 : x
  2. Step 2: Convert to fraction form
    22,791.19/31,453.42 = 12,721.59/x
  3. Step 3: Cross multiply
    22,791.19x = 31,453.42 × 12,721.59
  4. Step 4: Simplify right side
    22,791.19x = 400,137,449.73
  5. Step 5: Solve for x
    x = 400,137,449.73/22,791.19
  6. Step 6: Final answer
    x = 17,556.68

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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.