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Finding the Fourth Proportional to 43,351.70, 65,027.54 and 12,186.95

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Solution

The fourth proportional to 43,351.70, 65,027.54 and 12,186.95 is: 18,280.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,351.70 : 65,027.54 = 12,186.95 : x
  2. Step 2: Convert to fraction form
    43,351.70/65,027.54 = 12,186.95/x
  3. Step 3: Cross multiply
    43,351.70x = 65,027.54 × 12,186.95
  4. Step 4: Simplify right side
    43,351.70x = 792,486,992.53
  5. Step 5: Solve for x
    x = 792,486,992.53/43,351.70
  6. Step 6: Final answer
    x = 18,280.42

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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.