Home / 30,234.45-41,706.51-18,131.71

Finding the Fourth Proportional to 30,234.45, 41,706.51 and 18,131.71

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Solution

The fourth proportional to 30,234.45, 41,706.51 and 18,131.71 is: 25,011.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,234.45 : 41,706.51 = 18,131.71 : x
  2. Step 2: Convert to fraction form
    30,234.45/41,706.51 = 18,131.71/x
  3. Step 3: Cross multiply
    30,234.45x = 41,706.51 × 18,131.71
  4. Step 4: Simplify right side
    30,234.45x = 756,210,135.90
  5. Step 5: Solve for x
    x = 756,210,135.90/30,234.45
  6. Step 6: Final answer
    x = 25,011.54

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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.