Home / 13,389.28-20,086.78-4,028.52

Finding the Fourth Proportional to 13,389.28, 20,086.78 and 4,028.52

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Solution

The fourth proportional to 13,389.28, 20,086.78 and 4,028.52 is: 6,043.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389.28 : 20,086.78 = 4,028.52 : x
  2. Step 2: Convert to fraction form
    13,389.28/20,086.78 = 4,028.52/x
  3. Step 3: Cross multiply
    13,389.28x = 20,086.78 × 4,028.52
  4. Step 4: Simplify right side
    13,389.28x = 80,919,994.97
  5. Step 5: Solve for x
    x = 80,919,994.97/13,389.28
  6. Step 6: Final answer
    x = 6,043.64

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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.