Home / 20,452.32-28,305.36-19,961.64

Finding the Fourth Proportional to 20,452.32, 28,305.36 and 19,961.64

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Solution

The fourth proportional to 20,452.32, 28,305.36 and 19,961.64 is: 27,626.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,452.32 : 28,305.36 = 19,961.64 : x
  2. Step 2: Convert to fraction form
    20,452.32/28,305.36 = 19,961.64/x
  3. Step 3: Cross multiply
    20,452.32x = 28,305.36 × 19,961.64
  4. Step 4: Simplify right side
    20,452.32x = 565,021,406.39
  5. Step 5: Solve for x
    x = 565,021,406.39/20,452.32
  6. Step 6: Final answer
    x = 27,626.27

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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.