Home / 33,871.30-46,765.20-21,143.86

Finding the Fourth Proportional to 33,871.30, 46,765.20 and 21,143.86

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Solution

The fourth proportional to 33,871.30, 46,765.20 and 21,143.86 is: 29,192.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,871.30 : 46,765.20 = 21,143.86 : x
  2. Step 2: Convert to fraction form
    33,871.30/46,765.20 = 21,143.86/x
  3. Step 3: Cross multiply
    33,871.30x = 46,765.20 × 21,143.86
  4. Step 4: Simplify right side
    33,871.30x = 988,796,841.67
  5. Step 5: Solve for x
    x = 988,796,841.67/33,871.30
  6. Step 6: Final answer
    x = 29,192.76

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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.