Home / 20,711.12-28,576.68-17,367.44

Finding the Fourth Proportional to 20,711.12, 28,576.68 and 17,367.44

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Solution

The fourth proportional to 20,711.12, 28,576.68 and 17,367.44 is: 23,963.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,711.12 : 28,576.68 = 17,367.44 : x
  2. Step 2: Convert to fraction form
    20,711.12/28,576.68 = 17,367.44/x
  3. Step 3: Cross multiply
    20,711.12x = 28,576.68 × 17,367.44
  4. Step 4: Simplify right side
    20,711.12x = 496,303,775.30
  5. Step 5: Solve for x
    x = 496,303,775.30/20,711.12
  6. Step 6: Final answer
    x = 23,963.15

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1.5x scale

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.