Home / 19,668.26-27,176.73-15,721.94

Finding the Fourth Proportional to 19,668.26, 27,176.73 and 15,721.94

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Solution

The fourth proportional to 19,668.26, 27,176.73 and 15,721.94 is: 21,723.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,668.26 : 27,176.73 = 15,721.94 : x
  2. Step 2: Convert to fraction form
    19,668.26/27,176.73 = 15,721.94/x
  3. Step 3: Cross multiply
    19,668.26x = 27,176.73 × 15,721.94
  4. Step 4: Simplify right side
    19,668.26x = 427,270,927.44
  5. Step 5: Solve for x
    x = 427,270,927.44/19,668.26
  6. Step 6: Final answer
    x = 21,723.88

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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.