Home / 20,150.30-30,239.22-7,002.56

Finding the Fourth Proportional to 20,150.30, 30,239.22 and 7,002.56

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Solution

The fourth proportional to 20,150.30, 30,239.22 and 7,002.56 is: 10,508.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.30 : 30,239.22 = 7,002.56 : x
  2. Step 2: Convert to fraction form
    20,150.30/30,239.22 = 7,002.56/x
  3. Step 3: Cross multiply
    20,150.30x = 30,239.22 × 7,002.56
  4. Step 4: Simplify right side
    20,150.30x = 211,751,952.40
  5. Step 5: Solve for x
    x = 211,751,952.40/20,150.30
  6. Step 6: Final answer
    x = 10,508.63

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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.