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Finding the Fourth Proportional to 20,194.70, 30,335.70 and 17,080.88

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Solution

The fourth proportional to 20,194.70, 30,335.70 and 17,080.88 is: 25,658.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,194.70 : 30,335.70 = 17,080.88 : x
  2. Step 2: Convert to fraction form
    20,194.70/30,335.70 = 17,080.88/x
  3. Step 3: Cross multiply
    20,194.70x = 30,335.70 × 17,080.88
  4. Step 4: Simplify right side
    20,194.70x = 518,160,451.42
  5. Step 5: Solve for x
    x = 518,160,451.42/20,194.70
  6. Step 6: Final answer
    x = 25,658.24

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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.