Home / 21,144.88-29,179.93-11,714.05

Finding the Fourth Proportional to 21,144.88, 29,179.93 and 11,714.05

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Solution

The fourth proportional to 21,144.88, 29,179.93 and 11,714.05 is: 16,165.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,144.88 : 29,179.93 = 11,714.05 : x
  2. Step 2: Convert to fraction form
    21,144.88/29,179.93 = 11,714.05/x
  3. Step 3: Cross multiply
    21,144.88x = 29,179.93 × 11,714.05
  4. Step 4: Simplify right side
    21,144.88x = 341,815,013.12
  5. Step 5: Solve for x
    x = 341,815,013.12/21,144.88
  6. Step 6: Final answer
    x = 16,165.38

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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.