Home / 21,103.44-29,125.76-12,150.04

Finding the Fourth Proportional to 21,103.44, 29,125.76 and 12,150.04

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Solution

The fourth proportional to 21,103.44, 29,125.76 and 12,150.04 is: 16,768.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,103.44 : 29,125.76 = 12,150.04 : x
  2. Step 2: Convert to fraction form
    21,103.44/29,125.76 = 12,150.04/x
  3. Step 3: Cross multiply
    21,103.44x = 29,125.76 × 12,150.04
  4. Step 4: Simplify right side
    21,103.44x = 353,879,149.03
  5. Step 5: Solve for x
    x = 353,879,149.03/21,103.44
  6. Step 6: Final answer
    x = 16,768.79

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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.