Home / 20,185.96-30,270.30-7,034.44

Finding the Fourth Proportional to 20,185.96, 30,270.30 and 7,034.44

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Solution

The fourth proportional to 20,185.96, 30,270.30 and 7,034.44 is: 10,548.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185.96 : 30,270.30 = 7,034.44 : x
  2. Step 2: Convert to fraction form
    20,185.96/30,270.30 = 7,034.44/x
  3. Step 3: Cross multiply
    20,185.96x = 30,270.30 × 7,034.44
  4. Step 4: Simplify right side
    20,185.96x = 212,934,609.13
  5. Step 5: Solve for x
    x = 212,934,609.13/20,185.96
  6. Step 6: Final answer
    x = 10,548.65

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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.