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Finding the Fourth Proportional to 43,494.60, 65,241.90 and 12,330.12

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Solution

The fourth proportional to 43,494.60, 65,241.90 and 12,330.12 is: 18,495.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,494.60 : 65,241.90 = 12,330.12 : x
  2. Step 2: Convert to fraction form
    43,494.60/65,241.90 = 12,330.12/x
  3. Step 3: Cross multiply
    43,494.60x = 65,241.90 × 12,330.12
  4. Step 4: Simplify right side
    43,494.60x = 804,440,456.03
  5. Step 5: Solve for x
    x = 804,440,456.03/43,494.60
  6. Step 6: Final answer
    x = 18,495.18

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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.