Home / 20,175.68-30,237.24-10,306.64

Finding the Fourth Proportional to 20,175.68, 30,237.24 and 10,306.64

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Solution

The fourth proportional to 20,175.68, 30,237.24 and 10,306.64 is: 15,446.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,175.68 : 30,237.24 = 10,306.64 : x
  2. Step 2: Convert to fraction form
    20,175.68/30,237.24 = 10,306.64/x
  3. Step 3: Cross multiply
    20,175.68x = 30,237.24 × 10,306.64
  4. Step 4: Simplify right side
    20,175.68x = 311,644,347.27
  5. Step 5: Solve for x
    x = 311,644,347.27/20,175.68
  6. Step 6: Final answer
    x = 15,446.54

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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.