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Finding the Fourth Proportional to 20,067.76, 30,073.59 and 17,090.71

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Solution

The fourth proportional to 20,067.76, 30,073.59 and 17,090.71 is: 25,612.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,067.76 : 30,073.59 = 17,090.71 : x
  2. Step 2: Convert to fraction form
    20,067.76/30,073.59 = 17,090.71/x
  3. Step 3: Cross multiply
    20,067.76x = 30,073.59 × 17,090.71
  4. Step 4: Simplify right side
    20,067.76x = 513,979,005.35
  5. Step 5: Solve for x
    x = 513,979,005.35/20,067.76
  6. Step 6: Final answer
    x = 25,612.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.