Home / 19,172.92-28,749.30-11,277.86

Finding the Fourth Proportional to 19,172.92, 28,749.30 and 11,277.86

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Solution

The fourth proportional to 19,172.92, 28,749.30 and 11,277.86 is: 16,910.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,172.92 : 28,749.30 = 11,277.86 : x
  2. Step 2: Convert to fraction form
    19,172.92/28,749.30 = 11,277.86/x
  3. Step 3: Cross multiply
    19,172.92x = 28,749.30 × 11,277.86
  4. Step 4: Simplify right side
    19,172.92x = 324,230,580.50
  5. Step 5: Solve for x
    x = 324,230,580.50/19,172.92
  6. Step 6: Final answer
    x = 16,910.86

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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.