Home / 20,181.50-30,272.38-7,034.12

Finding the Fourth Proportional to 20,181.50, 30,272.38 and 7,034.12

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Solution

The fourth proportional to 20,181.50, 30,272.38 and 7,034.12 is: 10,551.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.50 : 30,272.38 = 7,034.12 : x
  2. Step 2: Convert to fraction form
    20,181.50/30,272.38 = 7,034.12/x
  3. Step 3: Cross multiply
    20,181.50x = 30,272.38 × 7,034.12
  4. Step 4: Simplify right side
    20,181.50x = 212,939,553.61
  5. Step 5: Solve for x
    x = 212,939,553.61/20,181.50
  6. Step 6: Final answer
    x = 10,551.23

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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.