Home / 23,136.90-31,930.81-13,067.79

Finding the Fourth Proportional to 23,136.90, 31,930.81 and 13,067.79

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Solution

The fourth proportional to 23,136.90, 31,930.81 and 13,067.79 is: 18,034.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,136.90 : 31,930.81 = 13,067.79 : x
  2. Step 2: Convert to fraction form
    23,136.90/31,930.81 = 13,067.79/x
  3. Step 3: Cross multiply
    23,136.90x = 31,930.81 × 13,067.79
  4. Step 4: Simplify right side
    23,136.90x = 417,265,086.94
  5. Step 5: Solve for x
    x = 417,265,086.94/23,136.90
  6. Step 6: Final answer
    x = 18,034.62

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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.