Home / 21,474.75-29,635.16-12,043.31

Finding the Fourth Proportional to 21,474.75, 29,635.16 and 12,043.31

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Solution

The fourth proportional to 21,474.75, 29,635.16 and 12,043.31 is: 16,619.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,474.75 : 29,635.16 = 12,043.31 : x
  2. Step 2: Convert to fraction form
    21,474.75/29,635.16 = 12,043.31/x
  3. Step 3: Cross multiply
    21,474.75x = 29,635.16 × 12,043.31
  4. Step 4: Simplify right side
    21,474.75x = 356,905,418.78
  5. Step 5: Solve for x
    x = 356,905,418.78/21,474.75
  6. Step 6: Final answer
    x = 16,619.77

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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.