Home / 20,227.12-30,340.37-7,079.60

Finding the Fourth Proportional to 20,227.12, 30,340.37 and 7,079.60

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Solution

The fourth proportional to 20,227.12, 30,340.37 and 7,079.60 is: 10,619.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,227.12 : 30,340.37 = 7,079.60 : x
  2. Step 2: Convert to fraction form
    20,227.12/30,340.37 = 7,079.60/x
  3. Step 3: Cross multiply
    20,227.12x = 30,340.37 × 7,079.60
  4. Step 4: Simplify right side
    20,227.12x = 214,797,777.00
  5. Step 5: Solve for x
    x = 214,797,777.00/20,227.12
  6. Step 6: Final answer
    x = 10,619.30

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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.