Home / 20,277.20-30,405.41-10,794.90

Finding the Fourth Proportional to 20,277.20, 30,405.41 and 10,794.90

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Solution

The fourth proportional to 20,277.20, 30,405.41 and 10,794.90 is: 16,186.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,277.20 : 30,405.41 = 10,794.90 : x
  2. Step 2: Convert to fraction form
    20,277.20/30,405.41 = 10,794.90/x
  3. Step 3: Cross multiply
    20,277.20x = 30,405.41 × 10,794.90
  4. Step 4: Simplify right side
    20,277.20x = 328,223,346.92
  5. Step 5: Solve for x
    x = 328,223,346.92/20,277.20
  6. Step 6: Final answer
    x = 16,186.82

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1.5x scale

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.