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Finding the Fourth Proportional to 28,997.70, 43,494.92 and 7,936.19

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Solution

The fourth proportional to 28,997.70, 43,494.92 and 7,936.19 is: 11,903.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,997.70 : 43,494.92 = 7,936.19 : x
  2. Step 2: Convert to fraction form
    28,997.70/43,494.92 = 7,936.19/x
  3. Step 3: Cross multiply
    28,997.70x = 43,494.92 × 7,936.19
  4. Step 4: Simplify right side
    28,997.70x = 345,184,174.17
  5. Step 5: Solve for x
    x = 345,184,174.17/28,997.70
  6. Step 6: Final answer
    x = 11,903.85

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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.