Home / 20,143.56-27,801.44-16,781.04

Finding the Fourth Proportional to 20,143.56, 27,801.44 and 16,781.04

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Solution

The fourth proportional to 20,143.56, 27,801.44 and 16,781.04 is: 23,160.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,143.56 : 27,801.44 = 16,781.04 : x
  2. Step 2: Convert to fraction form
    20,143.56/27,801.44 = 16,781.04/x
  3. Step 3: Cross multiply
    20,143.56x = 27,801.44 × 16,781.04
  4. Step 4: Simplify right side
    20,143.56x = 466,537,076.70
  5. Step 5: Solve for x
    x = 466,537,076.70/20,143.56
  6. Step 6: Final answer
    x = 23,160.61

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1.5x scale

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.