Home / 20,127.27-30,188.18-7,650.44

Finding the Fourth Proportional to 20,127.27, 30,188.18 and 7,650.44

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Solution

The fourth proportional to 20,127.27, 30,188.18 and 7,650.44 is: 11,474.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,127.27 : 30,188.18 = 7,650.44 : x
  2. Step 2: Convert to fraction form
    20,127.27/30,188.18 = 7,650.44/x
  3. Step 3: Cross multiply
    20,127.27x = 30,188.18 × 7,650.44
  4. Step 4: Simplify right side
    20,127.27x = 230,952,798.16
  5. Step 5: Solve for x
    x = 230,952,798.16/20,127.27
  6. Step 6: Final answer
    x = 11,474.62

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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.