Home / 20,934.48-31,359.24-10,372.68

Finding the Fourth Proportional to 20,934.48, 31,359.24 and 10,372.68

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Solution

The fourth proportional to 20,934.48, 31,359.24 and 10,372.68 is: 15,537.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,934.48 : 31,359.24 = 10,372.68 : x
  2. Step 2: Convert to fraction form
    20,934.48/31,359.24 = 10,372.68/x
  3. Step 3: Cross multiply
    20,934.48x = 31,359.24 × 10,372.68
  4. Step 4: Simplify right side
    20,934.48x = 325,279,361.56
  5. Step 5: Solve for x
    x = 325,279,361.56/20,934.48
  6. Step 6: Final answer
    x = 15,537.97

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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.