Home / 43,454.92-65,160.18-21,235

Finding the Fourth Proportional to 43,454.92, 65,160.18 and 21,235

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Solution

The fourth proportional to 43,454.92, 65,160.18 and 21,235 is: 31,841.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,454.92 : 65,160.18 = 21,235 : x
  2. Step 2: Convert to fraction form
    43,454.92/65,160.18 = 21,235/x
  3. Step 3: Cross multiply
    43,454.92x = 65,160.18 × 21,235
  4. Step 4: Simplify right side
    43,454.92x = 1,383,676,422.30
  5. Step 5: Solve for x
    x = 1,383,676,422.30/43,454.92
  6. Step 6: Final answer
    x = 31,841.65

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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.