Home / 20,576.20-30,845.82-7,425.48

Finding the Fourth Proportional to 20,576.20, 30,845.82 and 7,425.48

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Solution

The fourth proportional to 20,576.20, 30,845.82 and 7,425.48 is: 11,131.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,576.20 : 30,845.82 = 7,425.48 : x
  2. Step 2: Convert to fraction form
    20,576.20/30,845.82 = 7,425.48/x
  3. Step 3: Cross multiply
    20,576.20x = 30,845.82 × 7,425.48
  4. Step 4: Simplify right side
    20,576.20x = 229,045,019.49
  5. Step 5: Solve for x
    x = 229,045,019.49/20,576.20
  6. Step 6: Final answer
    x = 11,131.55

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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.