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Finding the Fourth Proportional to 18,161.32, 25,102.02 and 16,761.64

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Solution

The fourth proportional to 18,161.32, 25,102.02 and 16,761.64 is: 23,167.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,161.32 : 25,102.02 = 16,761.64 : x
  2. Step 2: Convert to fraction form
    18,161.32/25,102.02 = 16,761.64/x
  3. Step 3: Cross multiply
    18,161.32x = 25,102.02 × 16,761.64
  4. Step 4: Simplify right side
    18,161.32x = 420,751,022.51
  5. Step 5: Solve for x
    x = 420,751,022.51/18,161.32
  6. Step 6: Final answer
    x = 23,167.43

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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.