Home / 20,181.88-30,262.44-9,079.12

Finding the Fourth Proportional to 20,181.88, 30,262.44 and 9,079.12

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Solution

The fourth proportional to 20,181.88, 30,262.44 and 9,079.12 is: 13,614.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.88 : 30,262.44 = 9,079.12 : x
  2. Step 2: Convert to fraction form
    20,181.88/30,262.44 = 9,079.12/x
  3. Step 3: Cross multiply
    20,181.88x = 30,262.44 × 9,079.12
  4. Step 4: Simplify right side
    20,181.88x = 274,756,324.25
  5. Step 5: Solve for x
    x = 274,756,324.25/20,181.88
  6. Step 6: Final answer
    x = 13,614.01

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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.