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Finding the Fourth Proportional to 43,659.35, 65,460.85 and 20,850.85

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Solution

The fourth proportional to 43,659.35, 65,460.85 and 20,850.85 is: 31,262.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,659.35 : 65,460.85 = 20,850.85 : x
  2. Step 2: Convert to fraction form
    43,659.35/65,460.85 = 20,850.85/x
  3. Step 3: Cross multiply
    43,659.35x = 65,460.85 × 20,850.85
  4. Step 4: Simplify right side
    43,659.35x = 1,364,914,364.22
  5. Step 5: Solve for x
    x = 1,364,914,364.22/43,659.35
  6. Step 6: Final answer
    x = 31,262.82

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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.