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Finding the Fourth Proportional to 32,380.40, 48,570.60 and 18,530.80

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Solution

The fourth proportional to 32,380.40, 48,570.60 and 18,530.80 is: 27,796.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,380.40 : 48,570.60 = 18,530.80 : x
  2. Step 2: Convert to fraction form
    32,380.40/48,570.60 = 18,530.80/x
  3. Step 3: Cross multiply
    32,380.40x = 48,570.60 × 18,530.80
  4. Step 4: Simplify right side
    32,380.40x = 900,052,074.48
  5. Step 5: Solve for x
    x = 900,052,074.48/32,380.40
  6. Step 6: Final answer
    x = 27,796.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.