Home / 20,962.72-31,584.04-18,963.73

Finding the Fourth Proportional to 20,962.72, 31,584.04 and 18,963.73

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Solution

The fourth proportional to 20,962.72, 31,584.04 and 18,963.73 is: 28,572.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,962.72 : 31,584.04 = 18,963.73 : x
  2. Step 2: Convert to fraction form
    20,962.72/31,584.04 = 18,963.73/x
  3. Step 3: Cross multiply
    20,962.72x = 31,584.04 × 18,963.73
  4. Step 4: Simplify right side
    20,962.72x = 598,951,206.87
  5. Step 5: Solve for x
    x = 598,951,206.87/20,962.72
  6. Step 6: Final answer
    x = 28,572.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.