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Finding the Fourth Proportional to 18,164.40, 27,188.76 and 17,475.44

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Solution

The fourth proportional to 18,164.40, 27,188.76 and 17,475.44 is: 26,157.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,164.40 : 27,188.76 = 17,475.44 : x
  2. Step 2: Convert to fraction form
    18,164.40/27,188.76 = 17,475.44/x
  3. Step 3: Cross multiply
    18,164.40x = 27,188.76 × 17,475.44
  4. Step 4: Simplify right side
    18,164.40x = 475,135,544.05
  5. Step 5: Solve for x
    x = 475,135,544.05/18,164.40
  6. Step 6: Final answer
    x = 26,157.51

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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.