Home / 20,190.16-27,874.01-13,497.94

Finding the Fourth Proportional to 20,190.16, 27,874.01 and 13,497.94

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Solution

The fourth proportional to 20,190.16, 27,874.01 and 13,497.94 is: 18,634.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.16 : 27,874.01 = 13,497.94 : x
  2. Step 2: Convert to fraction form
    20,190.16/27,874.01 = 13,497.94/x
  3. Step 3: Cross multiply
    20,190.16x = 27,874.01 × 13,497.94
  4. Step 4: Simplify right side
    20,190.16x = 376,241,507.68
  5. Step 5: Solve for x
    x = 376,241,507.68/20,190.16
  6. Step 6: Final answer
    x = 18,634.90

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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.