Home / 23,122.20-31,908.90-13,051.20

Finding the Fourth Proportional to 23,122.20, 31,908.90 and 13,051.20

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Solution

The fourth proportional to 23,122.20, 31,908.90 and 13,051.20 is: 18,010.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,122.20 : 31,908.90 = 13,051.20 : x
  2. Step 2: Convert to fraction form
    23,122.20/31,908.90 = 13,051.20/x
  3. Step 3: Cross multiply
    23,122.20x = 31,908.90 × 13,051.20
  4. Step 4: Simplify right side
    23,122.20x = 416,449,435.68
  5. Step 5: Solve for x
    x = 416,449,435.68/23,122.20
  6. Step 6: Final answer
    x = 18,010.81

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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.