Home / 20,217.91-30,348.42-17,892.70

Finding the Fourth Proportional to 20,217.91, 30,348.42 and 17,892.70

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Solution

The fourth proportional to 20,217.91, 30,348.42 and 17,892.70 is: 26,858.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217.91 : 30,348.42 = 17,892.70 : x
  2. Step 2: Convert to fraction form
    20,217.91/30,348.42 = 17,892.70/x
  3. Step 3: Cross multiply
    20,217.91x = 30,348.42 × 17,892.70
  4. Step 4: Simplify right side
    20,217.91x = 543,015,022.79
  5. Step 5: Solve for x
    x = 543,015,022.79/20,217.91
  6. Step 6: Final answer
    x = 26,858.13

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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.