Home / 20,150.50-27,821.24-18,019.39

Finding the Fourth Proportional to 20,150.50, 27,821.24 and 18,019.39

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Solution

The fourth proportional to 20,150.50, 27,821.24 and 18,019.39 is: 24,878.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.50 : 27,821.24 = 18,019.39 : x
  2. Step 2: Convert to fraction form
    20,150.50/27,821.24 = 18,019.39/x
  3. Step 3: Cross multiply
    20,150.50x = 27,821.24 × 18,019.39
  4. Step 4: Simplify right side
    20,150.50x = 501,321,773.84
  5. Step 5: Solve for x
    x = 501,321,773.84/20,150.50
  6. Step 6: Final answer
    x = 24,878.88

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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.