Home / 13,690.22-20,535.35-3,829.46

Finding the Fourth Proportional to 13,690.22, 20,535.35 and 3,829.46

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Solution

The fourth proportional to 13,690.22, 20,535.35 and 3,829.46 is: 5,744.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,690.22 : 20,535.35 = 3,829.46 : x
  2. Step 2: Convert to fraction form
    13,690.22/20,535.35 = 3,829.46/x
  3. Step 3: Cross multiply
    13,690.22x = 20,535.35 × 3,829.46
  4. Step 4: Simplify right side
    13,690.22x = 78,639,179.59
  5. Step 5: Solve for x
    x = 78,639,179.59/13,690.22
  6. Step 6: Final answer
    x = 5,744.19

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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.