Home / 13,829.12-20,737.19-5,057.90

Finding the Fourth Proportional to 13,829.12, 20,737.19 and 5,057.90

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Solution

The fourth proportional to 13,829.12, 20,737.19 and 5,057.90 is: 7,584.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829.12 : 20,737.19 = 5,057.90 : x
  2. Step 2: Convert to fraction form
    13,829.12/20,737.19 = 5,057.90/x
  3. Step 3: Cross multiply
    13,829.12x = 20,737.19 × 5,057.90
  4. Step 4: Simplify right side
    13,829.12x = 104,886,529.62
  5. Step 5: Solve for x
    x = 104,886,529.62/13,829.12
  6. Step 6: Final answer
    x = 7,584.47

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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.