Home / 31,623.39-43,644.66-18,194.40

Finding the Fourth Proportional to 31,623.39, 43,644.66 and 18,194.40

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Solution

The fourth proportional to 31,623.39, 43,644.66 and 18,194.40 is: 25,110.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,623.39 : 43,644.66 = 18,194.40 : x
  2. Step 2: Convert to fraction form
    31,623.39/43,644.66 = 18,194.40/x
  3. Step 3: Cross multiply
    31,623.39x = 43,644.66 × 18,194.40
  4. Step 4: Simplify right side
    31,623.39x = 794,088,401.90
  5. Step 5: Solve for x
    x = 794,088,401.90/31,623.39
  6. Step 6: Final answer
    x = 25,110.79

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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.