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Finding the Fourth Proportional to 20,369.32, 30,608.64 and 17,797.74

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Solution

The fourth proportional to 20,369.32, 30,608.64 and 17,797.74 is: 26,744.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,369.32 : 30,608.64 = 17,797.74 : x
  2. Step 2: Convert to fraction form
    20,369.32/30,608.64 = 17,797.74/x
  3. Step 3: Cross multiply
    20,369.32x = 30,608.64 × 17,797.74
  4. Step 4: Simplify right side
    20,369.32x = 544,764,616.47
  5. Step 5: Solve for x
    x = 544,764,616.47/20,369.32
  6. Step 6: Final answer
    x = 26,744.37

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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.