Home / 20,576.73-30,869.96-7,429.22

Finding the Fourth Proportional to 20,576.73, 30,869.96 and 7,429.22

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Solution

The fourth proportional to 20,576.73, 30,869.96 and 7,429.22 is: 11,145.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,576.73 : 30,869.96 = 7,429.22 : x
  2. Step 2: Convert to fraction form
    20,576.73/30,869.96 = 7,429.22/x
  3. Step 3: Cross multiply
    20,576.73x = 30,869.96 × 7,429.22
  4. Step 4: Simplify right side
    20,576.73x = 229,339,690.29
  5. Step 5: Solve for x
    x = 229,339,690.29/20,576.73
  6. Step 6: Final answer
    x = 11,145.58

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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.