Home / 23,040-31,795.20-13,105.92

Finding the Fourth Proportional to 23,040, 31,795.20 and 13,105.92

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Solution

The fourth proportional to 23,040, 31,795.20 and 13,105.92 is: 18,086.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,040 : 31,795.20 = 13,105.92 : x
  2. Step 2: Convert to fraction form
    23,040/31,795.20 = 13,105.92/x
  3. Step 3: Cross multiply
    23,040x = 31,795.20 × 13,105.92
  4. Step 4: Simplify right side
    23,040x = 416,705,347.58
  5. Step 5: Solve for x
    x = 416,705,347.58/23,040
  6. Step 6: Final answer
    x = 18,086.17

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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.