Home / 23,179.66-31,987.72-13,110.08

Finding the Fourth Proportional to 23,179.66, 31,987.72 and 13,110.08

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Solution

The fourth proportional to 23,179.66, 31,987.72 and 13,110.08 is: 18,091.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,179.66 : 31,987.72 = 13,110.08 : x
  2. Step 2: Convert to fraction form
    23,179.66/31,987.72 = 13,110.08/x
  3. Step 3: Cross multiply
    23,179.66x = 31,987.72 × 13,110.08
  4. Step 4: Simplify right side
    23,179.66x = 419,361,568.22
  5. Step 5: Solve for x
    x = 419,361,568.22/23,179.66
  6. Step 6: Final answer
    x = 18,091.79

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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.