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Finding the Fourth Proportional to 20,010.56, 30,020.16 and 11,250.56

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Solution

The fourth proportional to 20,010.56, 30,020.16 and 11,250.56 is: 16,878.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,010.56 : 30,020.16 = 11,250.56 : x
  2. Step 2: Convert to fraction form
    20,010.56/30,020.16 = 11,250.56/x
  3. Step 3: Cross multiply
    20,010.56x = 30,020.16 × 11,250.56
  4. Step 4: Simplify right side
    20,010.56x = 337,743,611.29
  5. Step 5: Solve for x
    x = 337,743,611.29/20,010.56
  6. Step 6: Final answer
    x = 16,878.27

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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.