Home / 43,638.75-65,458.13-15,936.75

Finding the Fourth Proportional to 43,638.75, 65,458.13 and 15,936.75

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Solution

The fourth proportional to 43,638.75, 65,458.13 and 15,936.75 is: 23,905.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,638.75 : 65,458.13 = 15,936.75 : x
  2. Step 2: Convert to fraction form
    43,638.75/65,458.13 = 15,936.75/x
  3. Step 3: Cross multiply
    43,638.75x = 65,458.13 × 15,936.75
  4. Step 4: Simplify right side
    43,638.75x = 1,043,189,773.59
  5. Step 5: Solve for x
    x = 1,043,189,773.59/43,638.75
  6. Step 6: Final answer
    x = 23,905.13

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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.