Home / 30,234.70-41,706.86-18,131.96

Finding the Fourth Proportional to 30,234.70, 41,706.86 and 18,131.96

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Solution

The fourth proportional to 30,234.70, 41,706.86 and 18,131.96 is: 25,011.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,234.70 : 41,706.86 = 18,131.96 : x
  2. Step 2: Convert to fraction form
    30,234.70/41,706.86 = 18,131.96/x
  3. Step 3: Cross multiply
    30,234.70x = 41,706.86 × 18,131.96
  4. Step 4: Simplify right side
    30,234.70x = 756,226,818.05
  5. Step 5: Solve for x
    x = 756,226,818.05/30,234.70
  6. Step 6: Final answer
    x = 25,011.88

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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.