Home / 23,181.93-31,991.07-12,571.56

Finding the Fourth Proportional to 23,181.93, 31,991.07 and 12,571.56

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Solution

The fourth proportional to 23,181.93, 31,991.07 and 12,571.56 is: 17,348.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,181.93 : 31,991.07 = 12,571.56 : x
  2. Step 2: Convert to fraction form
    23,181.93/31,991.07 = 12,571.56/x
  3. Step 3: Cross multiply
    23,181.93x = 31,991.07 × 12,571.56
  4. Step 4: Simplify right side
    23,181.93x = 402,177,655.97
  5. Step 5: Solve for x
    x = 402,177,655.97/23,181.93
  6. Step 6: Final answer
    x = 17,348.76

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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.