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Finding the Fourth Proportional to 18,230.40, 27,330.60 and 8,235.80

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Solution

The fourth proportional to 18,230.40, 27,330.60 and 8,235.80 is: 12,346.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,230.40 : 27,330.60 = 8,235.80 : x
  2. Step 2: Convert to fraction form
    18,230.40/27,330.60 = 8,235.80/x
  3. Step 3: Cross multiply
    18,230.40x = 27,330.60 × 8,235.80
  4. Step 4: Simplify right side
    18,230.40x = 225,089,355.48
  5. Step 5: Solve for x
    x = 225,089,355.48/18,230.40
  6. Step 6: Final answer
    x = 12,346.92

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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.