Home / 20,676.64-28,534.26-11,725.06

Finding the Fourth Proportional to 20,676.64, 28,534.26 and 11,725.06

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Solution

The fourth proportional to 20,676.64, 28,534.26 and 11,725.06 is: 16,180.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,676.64 : 28,534.26 = 11,725.06 : x
  2. Step 2: Convert to fraction form
    20,676.64/28,534.26 = 11,725.06/x
  3. Step 3: Cross multiply
    20,676.64x = 28,534.26 × 11,725.06
  4. Step 4: Simplify right side
    20,676.64x = 334,565,910.56
  5. Step 5: Solve for x
    x = 334,565,910.56/20,676.64
  6. Step 6: Final answer
    x = 16,180.86

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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.