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Finding the Fourth Proportional to 43,775.82, 65,654.13 and 12,604.30

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Solution

The fourth proportional to 43,775.82, 65,654.13 and 12,604.30 is: 18,903.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,775.82 : 65,654.13 = 12,604.30 : x
  2. Step 2: Convert to fraction form
    43,775.82/65,654.13 = 12,604.30/x
  3. Step 3: Cross multiply
    43,775.82x = 65,654.13 × 12,604.30
  4. Step 4: Simplify right side
    43,775.82x = 827,524,350.76
  5. Step 5: Solve for x
    x = 827,524,350.76/43,775.82
  6. Step 6: Final answer
    x = 18,903.69

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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.