Home / 23,179.06-31,991.88-13,107.91

Finding the Fourth Proportional to 23,179.06, 31,991.88 and 13,107.91

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Solution

The fourth proportional to 23,179.06, 31,991.88 and 13,107.91 is: 18,091.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,179.06 : 31,991.88 = 13,107.91 : x
  2. Step 2: Convert to fraction form
    23,179.06/31,991.88 = 13,107.91/x
  3. Step 3: Cross multiply
    23,179.06x = 31,991.88 × 13,107.91
  4. Step 4: Simplify right side
    23,179.06x = 419,346,683.77
  5. Step 5: Solve for x
    x = 419,346,683.77/23,179.06
  6. Step 6: Final answer
    x = 18,091.62

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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.