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Finding the Fourth Proportional to 32,408.40, 48,612.60 and 30,221.40

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Solution

The fourth proportional to 32,408.40, 48,612.60 and 30,221.40 is: 45,332.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,408.40 : 48,612.60 = 30,221.40 : x
  2. Step 2: Convert to fraction form
    32,408.40/48,612.60 = 30,221.40/x
  3. Step 3: Cross multiply
    32,408.40x = 48,612.60 × 30,221.40
  4. Step 4: Simplify right side
    32,408.40x = 1,469,140,829.64
  5. Step 5: Solve for x
    x = 1,469,140,829.64/32,408.40
  6. Step 6: Final answer
    x = 45,332.10

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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.