Home / 43,546.11-65,317.77-12,381.36

Finding the Fourth Proportional to 43,546.11, 65,317.77 and 12,381.36

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Solution

The fourth proportional to 43,546.11, 65,317.77 and 12,381.36 is: 18,571.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,546.11 : 65,317.77 = 12,381.36 : x
  2. Step 2: Convert to fraction form
    43,546.11/65,317.77 = 12,381.36/x
  3. Step 3: Cross multiply
    43,546.11x = 65,317.77 × 12,381.36
  4. Step 4: Simplify right side
    43,546.11x = 808,722,824.77
  5. Step 5: Solve for x
    x = 808,722,824.77/43,546.11
  6. Step 6: Final answer
    x = 18,571.64

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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.