Home / 30,273.44-41,778.34-18,939.31

Finding the Fourth Proportional to 30,273.44, 41,778.34 and 18,939.31

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Solution

The fourth proportional to 30,273.44, 41,778.34 and 18,939.31 is: 26,136.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,273.44 : 41,778.34 = 18,939.31 : x
  2. Step 2: Convert to fraction form
    30,273.44/41,778.34 = 18,939.31/x
  3. Step 3: Cross multiply
    30,273.44x = 41,778.34 × 18,939.31
  4. Step 4: Simplify right side
    30,273.44x = 791,252,780.75
  5. Step 5: Solve for x
    x = 791,252,780.75/30,273.44
  6. Step 6: Final answer
    x = 26,136.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.