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Finding the Fourth Proportional to 21,014.70, 29,006.04 and 12,063

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Solution

The fourth proportional to 21,014.70, 29,006.04 and 12,063 is: 16,650.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014.70 : 29,006.04 = 12,063 : x
  2. Step 2: Convert to fraction form
    21,014.70/29,006.04 = 12,063/x
  3. Step 3: Cross multiply
    21,014.70x = 29,006.04 × 12,063
  4. Step 4: Simplify right side
    21,014.70x = 349,899,860.52
  5. Step 5: Solve for x
    x = 349,899,860.52/21,014.70
  6. Step 6: Final answer
    x = 16,650.24

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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.