Home / 18,899.25-28,349.49-5,751.75

Finding the Fourth Proportional to 18,899.25, 28,349.49 and 5,751.75

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Solution

The fourth proportional to 18,899.25, 28,349.49 and 5,751.75 is: 8,627.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,899.25 : 28,349.49 = 5,751.75 : x
  2. Step 2: Convert to fraction form
    18,899.25/28,349.49 = 5,751.75/x
  3. Step 3: Cross multiply
    18,899.25x = 28,349.49 × 5,751.75
  4. Step 4: Simplify right side
    18,899.25x = 163,059,179.11
  5. Step 5: Solve for x
    x = 163,059,179.11/18,899.25
  6. Step 6: Final answer
    x = 8,627.81

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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.