Home / 30,108.43-41,558.30-18,169.75

Finding the Fourth Proportional to 30,108.43, 41,558.30 and 18,169.75

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Solution

The fourth proportional to 30,108.43, 41,558.30 and 18,169.75 is: 25,079.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,108.43 : 41,558.30 = 18,169.75 : x
  2. Step 2: Convert to fraction form
    30,108.43/41,558.30 = 18,169.75/x
  3. Step 3: Cross multiply
    30,108.43x = 41,558.30 × 18,169.75
  4. Step 4: Simplify right side
    30,108.43x = 755,103,921.43
  5. Step 5: Solve for x
    x = 755,103,921.43/30,108.43
  6. Step 6: Final answer
    x = 25,079.49

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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.