Home / 20,604.06-28,432.08-11,650.86

Finding the Fourth Proportional to 20,604.06, 28,432.08 and 11,650.86

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Solution

The fourth proportional to 20,604.06, 28,432.08 and 11,650.86 is: 16,077.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,604.06 : 28,432.08 = 11,650.86 : x
  2. Step 2: Convert to fraction form
    20,604.06/28,432.08 = 11,650.86/x
  3. Step 3: Cross multiply
    20,604.06x = 28,432.08 × 11,650.86
  4. Step 4: Simplify right side
    20,604.06x = 331,258,183.59
  5. Step 5: Solve for x
    x = 331,258,183.59/20,604.06
  6. Step 6: Final answer
    x = 16,077.33

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.