Home / 20,076.72-30,102.12-13,493.04

Finding the Fourth Proportional to 20,076.72, 30,102.12 and 13,493.04

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Solution

The fourth proportional to 20,076.72, 30,102.12 and 13,493.04 is: 20,230.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.72 : 30,102.12 = 13,493.04 : x
  2. Step 2: Convert to fraction form
    20,076.72/30,102.12 = 13,493.04/x
  3. Step 3: Cross multiply
    20,076.72x = 30,102.12 × 13,493.04
  4. Step 4: Simplify right side
    20,076.72x = 406,169,109.24
  5. Step 5: Solve for x
    x = 406,169,109.24/20,076.72
  6. Step 6: Final answer
    x = 20,230.85

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1.5x scale

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.