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Finding the Fourth Proportional to 21,044.18, 29,040.92 and 12,092.34

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Solution

The fourth proportional to 21,044.18, 29,040.92 and 12,092.34 is: 16,687.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,044.18 : 29,040.92 = 12,092.34 : x
  2. Step 2: Convert to fraction form
    21,044.18/29,040.92 = 12,092.34/x
  3. Step 3: Cross multiply
    21,044.18x = 29,040.92 × 12,092.34
  4. Step 4: Simplify right side
    21,044.18x = 351,172,678.55
  5. Step 5: Solve for x
    x = 351,172,678.55/21,044.18
  6. Step 6: Final answer
    x = 16,687.40

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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.