Home / 22,305.08-30,772.22-12,871.82

Finding the Fourth Proportional to 22,305.08, 30,772.22 and 12,871.82

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Solution

The fourth proportional to 22,305.08, 30,772.22 and 12,871.82 is: 17,758.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,305.08 : 30,772.22 = 12,871.82 : x
  2. Step 2: Convert to fraction form
    22,305.08/30,772.22 = 12,871.82/x
  3. Step 3: Cross multiply
    22,305.08x = 30,772.22 × 12,871.82
  4. Step 4: Simplify right side
    22,305.08x = 396,094,476.84
  5. Step 5: Solve for x
    x = 396,094,476.84/22,305.08
  6. Step 6: Final answer
    x = 17,758.04

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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.