Home / 28,914.14-43,365.20-11,138.69

Finding the Fourth Proportional to 28,914.14, 43,365.20 and 11,138.69

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Solution

The fourth proportional to 28,914.14, 43,365.20 and 11,138.69 is: 16,705.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,914.14 : 43,365.20 = 11,138.69 : x
  2. Step 2: Convert to fraction form
    28,914.14/43,365.20 = 11,138.69/x
  3. Step 3: Cross multiply
    28,914.14x = 43,365.20 × 11,138.69
  4. Step 4: Simplify right side
    28,914.14x = 483,031,481.67
  5. Step 5: Solve for x
    x = 483,031,481.67/28,914.14
  6. Step 6: Final answer
    x = 16,705.72

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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.