Home / 19,979.52-27,504-17,168.64

Finding the Fourth Proportional to 19,979.52, 27,504 and 17,168.64

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Solution

The fourth proportional to 19,979.52, 27,504 and 17,168.64 is: 23,634.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,979.52 : 27,504 = 17,168.64 : x
  2. Step 2: Convert to fraction form
    19,979.52/27,504 = 17,168.64/x
  3. Step 3: Cross multiply
    19,979.52x = 27,504 × 17,168.64
  4. Step 4: Simplify right side
    19,979.52x = 472,206,274.56
  5. Step 5: Solve for x
    x = 472,206,274.56/19,979.52
  6. Step 6: Final answer
    x = 23,634.52

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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.