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Finding the Fourth Proportional to 23,830.60, 35,745.90 and 18,311.80

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Solution

The fourth proportional to 23,830.60, 35,745.90 and 18,311.80 is: 27,467.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,830.60 : 35,745.90 = 18,311.80 : x
  2. Step 2: Convert to fraction form
    23,830.60/35,745.90 = 18,311.80/x
  3. Step 3: Cross multiply
    23,830.60x = 35,745.90 × 18,311.80
  4. Step 4: Simplify right side
    23,830.60x = 654,571,771.62
  5. Step 5: Solve for x
    x = 654,571,771.62/23,830.60
  6. Step 6: Final answer
    x = 27,467.70

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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.