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Finding the Fourth Proportional to 18,302.20, 27,453.30 and 18,010.60

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Solution

The fourth proportional to 18,302.20, 27,453.30 and 18,010.60 is: 27,015.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,302.20 : 27,453.30 = 18,010.60 : x
  2. Step 2: Convert to fraction form
    18,302.20/27,453.30 = 18,010.60/x
  3. Step 3: Cross multiply
    18,302.20x = 27,453.30 × 18,010.60
  4. Step 4: Simplify right side
    18,302.20x = 494,450,404.98
  5. Step 5: Solve for x
    x = 494,450,404.98/18,302.20
  6. Step 6: Final answer
    x = 27,015.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.