Home / 20,227.63-30,345.78-7,080.43

Finding the Fourth Proportional to 20,227.63, 30,345.78 and 7,080.43

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Solution

The fourth proportional to 20,227.63, 30,345.78 and 7,080.43 is: 10,622.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,227.63 : 30,345.78 = 7,080.43 : x
  2. Step 2: Convert to fraction form
    20,227.63/30,345.78 = 7,080.43/x
  3. Step 3: Cross multiply
    20,227.63x = 30,345.78 × 7,080.43
  4. Step 4: Simplify right side
    20,227.63x = 214,861,171.09
  5. Step 5: Solve for x
    x = 214,861,171.09/20,227.63
  6. Step 6: Final answer
    x = 10,622.16

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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.