Home / 25,121.92-34,668.78-13,791.88

Finding the Fourth Proportional to 25,121.92, 34,668.78 and 13,791.88

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Solution

The fourth proportional to 25,121.92, 34,668.78 and 13,791.88 is: 19,033.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,121.92 : 34,668.78 = 13,791.88 : x
  2. Step 2: Convert to fraction form
    25,121.92/34,668.78 = 13,791.88/x
  3. Step 3: Cross multiply
    25,121.92x = 34,668.78 × 13,791.88
  4. Step 4: Simplify right side
    25,121.92x = 478,147,653.51
  5. Step 5: Solve for x
    x = 478,147,653.51/25,121.92
  6. Step 6: Final answer
    x = 19,033.09

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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.