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Finding the Fourth Proportional to 43,999.38, 65,997.63 and 12,409.77

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Solution

The fourth proportional to 43,999.38, 65,997.63 and 12,409.77 is: 18,614.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,999.38 : 65,997.63 = 12,409.77 : x
  2. Step 2: Convert to fraction form
    43,999.38/65,997.63 = 12,409.77/x
  3. Step 3: Cross multiply
    43,999.38x = 65,997.63 × 12,409.77
  4. Step 4: Simplify right side
    43,999.38x = 819,015,408.85
  5. Step 5: Solve for x
    x = 819,015,408.85/43,999.38
  6. Step 6: Final answer
    x = 18,614.25

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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.