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Finding the Fourth Proportional to 20,352.60, 30,493 and 17,825.60

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Solution

The fourth proportional to 20,352.60, 30,493 and 17,825.60 is: 26,706.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,352.60 : 30,493 = 17,825.60 : x
  2. Step 2: Convert to fraction form
    20,352.60/30,493 = 17,825.60/x
  3. Step 3: Cross multiply
    20,352.60x = 30,493 × 17,825.60
  4. Step 4: Simplify right side
    20,352.60x = 543,556,020.80
  5. Step 5: Solve for x
    x = 543,556,020.80/20,352.60
  6. Step 6: Final answer
    x = 26,706.96

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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.