Home / 21,474.48-29,635.20-12,043.20

Finding the Fourth Proportional to 21,474.48, 29,635.20 and 12,043.20

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Solution

The fourth proportional to 21,474.48, 29,635.20 and 12,043.20 is: 16,619.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,474.48 : 29,635.20 = 12,043.20 : x
  2. Step 2: Convert to fraction form
    21,474.48/29,635.20 = 12,043.20/x
  3. Step 3: Cross multiply
    21,474.48x = 29,635.20 × 12,043.20
  4. Step 4: Simplify right side
    21,474.48x = 356,902,640.64
  5. Step 5: Solve for x
    x = 356,902,640.64/21,474.48
  6. Step 6: Final answer
    x = 16,619.85

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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.