Home / 20,467.17-28,242.41-11,517.75

Finding the Fourth Proportional to 20,467.17, 28,242.41 and 11,517.75

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Solution

The fourth proportional to 20,467.17, 28,242.41 and 11,517.75 is: 15,893.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,467.17 : 28,242.41 = 11,517.75 : x
  2. Step 2: Convert to fraction form
    20,467.17/28,242.41 = 11,517.75/x
  3. Step 3: Cross multiply
    20,467.17x = 28,242.41 × 11,517.75
  4. Step 4: Simplify right side
    20,467.17x = 325,288,960.19
  5. Step 5: Solve for x
    x = 325,288,960.19/20,467.17
  6. Step 6: Final answer
    x = 15,893.21

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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.