Home / 20,636.55-30,944.43-10,107.36

Finding the Fourth Proportional to 20,636.55, 30,944.43 and 10,107.36

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Solution

The fourth proportional to 20,636.55, 30,944.43 and 10,107.36 is: 15,155.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,636.55 : 30,944.43 = 10,107.36 : x
  2. Step 2: Convert to fraction form
    20,636.55/30,944.43 = 10,107.36/x
  3. Step 3: Cross multiply
    20,636.55x = 30,944.43 × 10,107.36
  4. Step 4: Simplify right side
    20,636.55x = 312,766,494.00
  5. Step 5: Solve for x
    x = 312,766,494.00/20,636.55
  6. Step 6: Final answer
    x = 15,155.95

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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.