Home / 20,219.44-30,332.40-7,071.52

Finding the Fourth Proportional to 20,219.44, 30,332.40 and 7,071.52

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Solution

The fourth proportional to 20,219.44, 30,332.40 and 7,071.52 is: 10,608.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219.44 : 30,332.40 = 7,071.52 : x
  2. Step 2: Convert to fraction form
    20,219.44/30,332.40 = 7,071.52/x
  3. Step 3: Cross multiply
    20,219.44x = 30,332.40 × 7,071.52
  4. Step 4: Simplify right side
    20,219.44x = 214,496,173.25
  5. Step 5: Solve for x
    x = 214,496,173.25/20,219.44
  6. Step 6: Final answer
    x = 10,608.41

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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.