Home / 30,125.91-41,556.43-18,789.96

Finding the Fourth Proportional to 30,125.91, 41,556.43 and 18,789.96

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Solution

The fourth proportional to 30,125.91, 41,556.43 and 18,789.96 is: 25,919.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,125.91 : 41,556.43 = 18,789.96 : x
  2. Step 2: Convert to fraction form
    30,125.91/41,556.43 = 18,789.96/x
  3. Step 3: Cross multiply
    30,125.91x = 41,556.43 × 18,789.96
  4. Step 4: Simplify right side
    30,125.91x = 780,843,657.44
  5. Step 5: Solve for x
    x = 780,843,657.44/30,125.91
  6. Step 6: Final answer
    x = 25,919.34

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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.