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Finding the Fourth Proportional to 20,042.54, 30,065.78 and 7,573.03

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Solution

The fourth proportional to 20,042.54, 30,065.78 and 7,573.03 is: 11,360.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042.54 : 30,065.78 = 7,573.03 : x
  2. Step 2: Convert to fraction form
    20,042.54/30,065.78 = 7,573.03/x
  3. Step 3: Cross multiply
    20,042.54x = 30,065.78 × 7,573.03
  4. Step 4: Simplify right side
    20,042.54x = 227,688,997.68
  5. Step 5: Solve for x
    x = 227,688,997.68/20,042.54
  6. Step 6: Final answer
    x = 11,360.29

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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.