Home / 20,393.24-30,550.40-11,939.27

Finding the Fourth Proportional to 20,393.24, 30,550.40 and 11,939.27

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Solution

The fourth proportional to 20,393.24, 30,550.40 and 11,939.27 is: 17,885.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,393.24 : 30,550.40 = 11,939.27 : x
  2. Step 2: Convert to fraction form
    20,393.24/30,550.40 = 11,939.27/x
  3. Step 3: Cross multiply
    20,393.24x = 30,550.40 × 11,939.27
  4. Step 4: Simplify right side
    20,393.24x = 364,749,414.51
  5. Step 5: Solve for x
    x = 364,749,414.51/20,393.24
  6. Step 6: Final answer
    x = 17,885.80

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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.