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Finding the Fourth Proportional to 20,260.50, 30,244.11 and 17,504.88

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Solution

The fourth proportional to 20,260.50, 30,244.11 and 17,504.88 is: 26,130.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.50 : 30,244.11 = 17,504.88 : x
  2. Step 2: Convert to fraction form
    20,260.50/30,244.11 = 17,504.88/x
  3. Step 3: Cross multiply
    20,260.50x = 30,244.11 × 17,504.88
  4. Step 4: Simplify right side
    20,260.50x = 529,419,516.26
  5. Step 5: Solve for x
    x = 529,419,516.26/20,260.50
  6. Step 6: Final answer
    x = 26,130.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.