Home / 20,844.64-28,765.92-11,414.08

Finding the Fourth Proportional to 20,844.64, 28,765.92 and 11,414.08

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Solution

The fourth proportional to 20,844.64, 28,765.92 and 11,414.08 is: 15,751.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,844.64 : 28,765.92 = 11,414.08 : x
  2. Step 2: Convert to fraction form
    20,844.64/28,765.92 = 11,414.08/x
  3. Step 3: Cross multiply
    20,844.64x = 28,765.92 × 11,414.08
  4. Step 4: Simplify right side
    20,844.64x = 328,336,512.15
  5. Step 5: Solve for x
    x = 328,336,512.15/20,844.64
  6. Step 6: Final answer
    x = 15,751.60

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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.