Home / 13,816.77-20,725.35-3,428.52

Finding the Fourth Proportional to 13,816.77, 20,725.35 and 3,428.52

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Solution

The fourth proportional to 13,816.77, 20,725.35 and 3,428.52 is: 5,142.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.77 : 20,725.35 = 3,428.52 : x
  2. Step 2: Convert to fraction form
    13,816.77/20,725.35 = 3,428.52/x
  3. Step 3: Cross multiply
    13,816.77x = 20,725.35 × 3,428.52
  4. Step 4: Simplify right side
    13,816.77x = 71,057,276.98
  5. Step 5: Solve for x
    x = 71,057,276.98/13,816.77
  6. Step 6: Final answer
    x = 5,142.83

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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.