Home / 21,051.29-29,052.78-12,104.03

Finding the Fourth Proportional to 21,051.29, 29,052.78 and 12,104.03

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Solution

The fourth proportional to 21,051.29, 29,052.78 and 12,104.03 is: 16,704.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,051.29 : 29,052.78 = 12,104.03 : x
  2. Step 2: Convert to fraction form
    21,051.29/29,052.78 = 12,104.03/x
  3. Step 3: Cross multiply
    21,051.29x = 29,052.78 × 12,104.03
  4. Step 4: Simplify right side
    21,051.29x = 351,655,747.95
  5. Step 5: Solve for x
    x = 351,655,747.95/21,051.29
  6. Step 6: Final answer
    x = 16,704.71

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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.