Home / 20,185.26-27,839.88-13,113.96

Finding the Fourth Proportional to 20,185.26, 27,839.88 and 13,113.96

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Solution

The fourth proportional to 20,185.26, 27,839.88 and 13,113.96 is: 18,087.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185.26 : 27,839.88 = 13,113.96 : x
  2. Step 2: Convert to fraction form
    20,185.26/27,839.88 = 13,113.96/x
  3. Step 3: Cross multiply
    20,185.26x = 27,839.88 × 13,113.96
  4. Step 4: Simplify right side
    20,185.26x = 365,091,072.72
  5. Step 5: Solve for x
    x = 365,091,072.72/20,185.26
  6. Step 6: Final answer
    x = 18,087.01

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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.