Home / 30,190.88-41,665.23-18,257.15

Finding the Fourth Proportional to 30,190.88, 41,665.23 and 18,257.15

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Solution

The fourth proportional to 30,190.88, 41,665.23 and 18,257.15 is: 25,195.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,190.88 : 41,665.23 = 18,257.15 : x
  2. Step 2: Convert to fraction form
    30,190.88/41,665.23 = 18,257.15/x
  3. Step 3: Cross multiply
    30,190.88x = 41,665.23 × 18,257.15
  4. Step 4: Simplify right side
    30,190.88x = 760,688,145.57
  5. Step 5: Solve for x
    x = 760,688,145.57/30,190.88
  6. Step 6: Final answer
    x = 25,195.96

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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.