Home / 20,245.62-27,942.56-13,084.40

Finding the Fourth Proportional to 20,245.62, 27,942.56 and 13,084.40

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Solution

The fourth proportional to 20,245.62, 27,942.56 and 13,084.40 is: 18,058.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,245.62 : 27,942.56 = 13,084.40 : x
  2. Step 2: Convert to fraction form
    20,245.62/27,942.56 = 13,084.40/x
  3. Step 3: Cross multiply
    20,245.62x = 27,942.56 × 13,084.40
  4. Step 4: Simplify right side
    20,245.62x = 365,611,632.06
  5. Step 5: Solve for x
    x = 365,611,632.06/20,245.62
  6. Step 6: Final answer
    x = 18,058.80

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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.