Home / 13,886.38-20,832.78-4,025.80

Finding the Fourth Proportional to 13,886.38, 20,832.78 and 4,025.80

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Solution

The fourth proportional to 13,886.38, 20,832.78 and 4,025.80 is: 6,039.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,886.38 : 20,832.78 = 4,025.80 : x
  2. Step 2: Convert to fraction form
    13,886.38/20,832.78 = 4,025.80/x
  3. Step 3: Cross multiply
    13,886.38x = 20,832.78 × 4,025.80
  4. Step 4: Simplify right side
    13,886.38x = 83,868,605.72
  5. Step 5: Solve for x
    x = 83,868,605.72/13,886.38
  6. Step 6: Final answer
    x = 6,039.63

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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.