Home / 33,147.87-49,720.19-12,369.75

Finding the Fourth Proportional to 33,147.87, 49,720.19 and 12,369.75

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Solution

The fourth proportional to 33,147.87, 49,720.19 and 12,369.75 is: 18,554.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,147.87 : 49,720.19 = 12,369.75 : x
  2. Step 2: Convert to fraction form
    33,147.87/49,720.19 = 12,369.75/x
  3. Step 3: Cross multiply
    33,147.87x = 49,720.19 × 12,369.75
  4. Step 4: Simplify right side
    33,147.87x = 615,026,258.40
  5. Step 5: Solve for x
    x = 615,026,258.40/33,147.87
  6. Step 6: Final answer
    x = 18,554.02

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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.