Home / 28,716.30-43,056.80-11,165.68

Finding the Fourth Proportional to 28,716.30, 43,056.80 and 11,165.68

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Solution

The fourth proportional to 28,716.30, 43,056.80 and 11,165.68 is: 16,741.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,716.30 : 43,056.80 = 11,165.68 : x
  2. Step 2: Convert to fraction form
    28,716.30/43,056.80 = 11,165.68/x
  3. Step 3: Cross multiply
    28,716.30x = 43,056.80 × 11,165.68
  4. Step 4: Simplify right side
    28,716.30x = 480,758,450.62
  5. Step 5: Solve for x
    x = 480,758,450.62/28,716.30
  6. Step 6: Final answer
    x = 16,741.66

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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.