Home / 20,101.44-30,147.36-7,622.64

Finding the Fourth Proportional to 20,101.44, 30,147.36 and 7,622.64

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Solution

The fourth proportional to 20,101.44, 30,147.36 and 7,622.64 is: 11,432.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.44 : 30,147.36 = 7,622.64 : x
  2. Step 2: Convert to fraction form
    20,101.44/30,147.36 = 7,622.64/x
  3. Step 3: Cross multiply
    20,101.44x = 30,147.36 × 7,622.64
  4. Step 4: Simplify right side
    20,101.44x = 229,802,472.23
  5. Step 5: Solve for x
    x = 229,802,472.23/20,101.44
  6. Step 6: Final answer
    x = 11,432.14

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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.