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Finding the Fourth Proportional to 18,251.96, 25,190.34 and 17,126.20

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Solution

The fourth proportional to 18,251.96, 25,190.34 and 17,126.20 is: 23,636.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,251.96 : 25,190.34 = 17,126.20 : x
  2. Step 2: Convert to fraction form
    18,251.96/25,190.34 = 17,126.20/x
  3. Step 3: Cross multiply
    18,251.96x = 25,190.34 × 17,126.20
  4. Step 4: Simplify right side
    18,251.96x = 431,414,674.96
  5. Step 5: Solve for x
    x = 431,414,674.96/18,251.96
  6. Step 6: Final answer
    x = 23,636.62

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Half scale
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Double scale
Find fourth proportional to 18,252.96, 25,191.72 and 17,127.20
Similar ratio
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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.