Home / 18,669.76-28,003.90-4,629.82

Finding the Fourth Proportional to 18,669.76, 28,003.90 and 4,629.82

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Solution

The fourth proportional to 18,669.76, 28,003.90 and 4,629.82 is: 6,944.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,669.76 : 28,003.90 = 4,629.82 : x
  2. Step 2: Convert to fraction form
    18,669.76/28,003.90 = 4,629.82/x
  3. Step 3: Cross multiply
    18,669.76x = 28,003.90 × 4,629.82
  4. Step 4: Simplify right side
    18,669.76x = 129,653,016.30
  5. Step 5: Solve for x
    x = 129,653,016.30/18,669.76
  6. Step 6: Final answer
    x = 6,944.55

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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.