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Finding the Fourth Proportional to 32,257.80, 48,321.90 and 18,390.60

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Solution

The fourth proportional to 32,257.80, 48,321.90 and 18,390.60 is: 27,548.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,257.80 : 48,321.90 = 18,390.60 : x
  2. Step 2: Convert to fraction form
    32,257.80/48,321.90 = 18,390.60/x
  3. Step 3: Cross multiply
    32,257.80x = 48,321.90 × 18,390.60
  4. Step 4: Simplify right side
    32,257.80x = 888,668,734.14
  5. Step 5: Solve for x
    x = 888,668,734.14/32,257.80
  6. Step 6: Final answer
    x = 27,548.96

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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.