Home / 20,250.41-27,958.97-13,188.83

Finding the Fourth Proportional to 20,250.41, 27,958.97 and 13,188.83

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Solution

The fourth proportional to 20,250.41, 27,958.97 and 13,188.83 is: 18,209.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.41 : 27,958.97 = 13,188.83 : x
  2. Step 2: Convert to fraction form
    20,250.41/27,958.97 = 13,188.83/x
  3. Step 3: Cross multiply
    20,250.41x = 27,958.97 × 13,188.83
  4. Step 4: Simplify right side
    20,250.41x = 368,745,995.48
  5. Step 5: Solve for x
    x = 368,745,995.48/20,250.41
  6. Step 6: Final answer
    x = 18,209.31

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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.