Home / 30,106.85-41,555.97-18,170.96

Finding the Fourth Proportional to 30,106.85, 41,555.97 and 18,170.96

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Solution

The fourth proportional to 30,106.85, 41,555.97 and 18,170.96 is: 25,081.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,106.85 : 41,555.97 = 18,170.96 : x
  2. Step 2: Convert to fraction form
    30,106.85/41,555.97 = 18,170.96/x
  3. Step 3: Cross multiply
    30,106.85x = 41,555.97 × 18,170.96
  4. Step 4: Simplify right side
    30,106.85x = 755,111,660.85
  5. Step 5: Solve for x
    x = 755,111,660.85/30,106.85
  6. Step 6: Final answer
    x = 25,081.06

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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.