Home / 20,170.37-27,847.55-13,002.83

Finding the Fourth Proportional to 20,170.37, 27,847.55 and 13,002.83

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Solution

The fourth proportional to 20,170.37, 27,847.55 and 13,002.83 is: 17,951.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,170.37 : 27,847.55 = 13,002.83 : x
  2. Step 2: Convert to fraction form
    20,170.37/27,847.55 = 13,002.83/x
  3. Step 3: Cross multiply
    20,170.37x = 27,847.55 × 13,002.83
  4. Step 4: Simplify right side
    20,170.37x = 362,096,883.12
  5. Step 5: Solve for x
    x = 362,096,883.12/20,170.37
  6. Step 6: Final answer
    x = 17,951.92

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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.