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Finding the Fourth Proportional to 13,395.80, 20,093.60 and 4,035.78

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Solution

The fourth proportional to 13,395.80, 20,093.60 and 4,035.78 is: 6,053.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395.80 : 20,093.60 = 4,035.78 : x
  2. Step 2: Convert to fraction form
    13,395.80/20,093.60 = 4,035.78/x
  3. Step 3: Cross multiply
    13,395.80x = 20,093.60 × 4,035.78
  4. Step 4: Simplify right side
    13,395.80x = 81,093,349.01
  5. Step 5: Solve for x
    x = 81,093,349.01/13,395.80
  6. Step 6: Final answer
    x = 6,053.64

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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.