Home / 20,750.18-28,633.64-11,797.79

Finding the Fourth Proportional to 20,750.18, 28,633.64 and 11,797.79

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Solution

The fourth proportional to 20,750.18, 28,633.64 and 11,797.79 is: 16,280.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,750.18 : 28,633.64 = 11,797.79 : x
  2. Step 2: Convert to fraction form
    20,750.18/28,633.64 = 11,797.79/x
  3. Step 3: Cross multiply
    20,750.18x = 28,633.64 × 11,797.79
  4. Step 4: Simplify right side
    20,750.18x = 337,813,469.50
  5. Step 5: Solve for x
    x = 337,813,469.50/20,750.18
  6. Step 6: Final answer
    x = 16,280.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.