Home / 20,441.71-28,209.82-12,375.26

Finding the Fourth Proportional to 20,441.71, 28,209.82 and 12,375.26

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Solution

The fourth proportional to 20,441.71, 28,209.82 and 12,375.26 is: 17,078.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,441.71 : 28,209.82 = 12,375.26 : x
  2. Step 2: Convert to fraction form
    20,441.71/28,209.82 = 12,375.26/x
  3. Step 3: Cross multiply
    20,441.71x = 28,209.82 × 12,375.26
  4. Step 4: Simplify right side
    20,441.71x = 349,103,857.05
  5. Step 5: Solve for x
    x = 349,103,857.05/20,441.71
  6. Step 6: Final answer
    x = 17,078.02

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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.