Home / 21,508.10-29,676.33-12,076.04

Finding the Fourth Proportional to 21,508.10, 29,676.33 and 12,076.04

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Solution

The fourth proportional to 21,508.10, 29,676.33 and 12,076.04 is: 16,662.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,508.10 : 29,676.33 = 12,076.04 : x
  2. Step 2: Convert to fraction form
    21,508.10/29,676.33 = 12,076.04/x
  3. Step 3: Cross multiply
    21,508.10x = 29,676.33 × 12,076.04
  4. Step 4: Simplify right side
    21,508.10x = 358,372,548.13
  5. Step 5: Solve for x
    x = 358,372,548.13/21,508.10
  6. Step 6: Final answer
    x = 16,662.21

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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.