Home / 30,334.18-41,864.30-18,238.61

Finding the Fourth Proportional to 30,334.18, 41,864.30 and 18,238.61

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Solution

The fourth proportional to 30,334.18, 41,864.30 and 18,238.61 is: 25,171.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,334.18 : 41,864.30 = 18,238.61 : x
  2. Step 2: Convert to fraction form
    30,334.18/41,864.30 = 18,238.61/x
  3. Step 3: Cross multiply
    30,334.18x = 41,864.30 × 18,238.61
  4. Step 4: Simplify right side
    30,334.18x = 763,546,640.62
  5. Step 5: Solve for x
    x = 763,546,640.62/30,334.18
  6. Step 6: Final answer
    x = 25,171.16

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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.