Home / 21,134.52-29,165.94-12,181.86

Finding the Fourth Proportional to 21,134.52, 29,165.94 and 12,181.86

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Solution

The fourth proportional to 21,134.52, 29,165.94 and 12,181.86 is: 16,811.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,134.52 : 29,165.94 = 12,181.86 : x
  2. Step 2: Convert to fraction form
    21,134.52/29,165.94 = 12,181.86/x
  3. Step 3: Cross multiply
    21,134.52x = 29,165.94 × 12,181.86
  4. Step 4: Simplify right side
    21,134.52x = 355,295,397.85
  5. Step 5: Solve for x
    x = 355,295,397.85/21,134.52
  6. Step 6: Final answer
    x = 16,811.14

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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.