Home / 27,676.53-38,193.42-15,739.86

Finding the Fourth Proportional to 27,676.53, 38,193.42 and 15,739.86

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Solution

The fourth proportional to 27,676.53, 38,193.42 and 15,739.86 is: 21,720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,676.53 : 38,193.42 = 15,739.86 : x
  2. Step 2: Convert to fraction form
    27,676.53/38,193.42 = 15,739.86/x
  3. Step 3: Cross multiply
    27,676.53x = 38,193.42 × 15,739.86
  4. Step 4: Simplify right side
    27,676.53x = 601,159,083.72
  5. Step 5: Solve for x
    x = 601,159,083.72/27,676.53
  6. Step 6: Final answer
    x = 21,720.90

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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.