Home / 23,118.82-31,904.08-13,047.68

Finding the Fourth Proportional to 23,118.82, 31,904.08 and 13,047.68

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Solution

The fourth proportional to 23,118.82, 31,904.08 and 13,047.68 is: 18,005.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,118.82 : 31,904.08 = 13,047.68 : x
  2. Step 2: Convert to fraction form
    23,118.82/31,904.08 = 13,047.68/x
  3. Step 3: Cross multiply
    23,118.82x = 31,904.08 × 13,047.68
  4. Step 4: Simplify right side
    23,118.82x = 416,274,273.68
  5. Step 5: Solve for x
    x = 416,274,273.68/23,118.82
  6. Step 6: Final answer
    x = 18,005.86

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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.