Home / 21,474.46-32,220.72-11,620.54

Finding the Fourth Proportional to 21,474.46, 32,220.72 and 11,620.54

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Solution

The fourth proportional to 21,474.46, 32,220.72 and 11,620.54 is: 17,435.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,474.46 : 32,220.72 = 11,620.54 : x
  2. Step 2: Convert to fraction form
    21,474.46/32,220.72 = 11,620.54/x
  3. Step 3: Cross multiply
    21,474.46x = 32,220.72 × 11,620.54
  4. Step 4: Simplify right side
    21,474.46x = 374,422,165.59
  5. Step 5: Solve for x
    x = 374,422,165.59/21,474.46
  6. Step 6: Final answer
    x = 17,435.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.