Home / 20,216.82-30,332.52-7,071.12

Finding the Fourth Proportional to 20,216.82, 30,332.52 and 7,071.12

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Solution

The fourth proportional to 20,216.82, 30,332.52 and 7,071.12 is: 10,609.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,216.82 : 30,332.52 = 7,071.12 : x
  2. Step 2: Convert to fraction form
    20,216.82/30,332.52 = 7,071.12/x
  3. Step 3: Cross multiply
    20,216.82x = 30,332.52 × 7,071.12
  4. Step 4: Simplify right side
    20,216.82x = 214,484,888.82
  5. Step 5: Solve for x
    x = 214,484,888.82/20,216.82
  6. Step 6: Final answer
    x = 10,609.23

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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.