Home / 20,844.72-28,765.85-11,414.16

Finding the Fourth Proportional to 20,844.72, 28,765.85 and 11,414.16

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Solution

The fourth proportional to 20,844.72, 28,765.85 and 11,414.16 is: 15,751.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,844.72 : 28,765.85 = 11,414.16 : x
  2. Step 2: Convert to fraction form
    20,844.72/28,765.85 = 11,414.16/x
  3. Step 3: Cross multiply
    20,844.72x = 28,765.85 × 11,414.16
  4. Step 4: Simplify right side
    20,844.72x = 328,337,957.37
  5. Step 5: Solve for x
    x = 328,337,957.37/20,844.72
  6. Step 6: Final answer
    x = 15,751.61

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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.