Home / 21,675.56-29,912.31-11,739.56

Finding the Fourth Proportional to 21,675.56, 29,912.31 and 11,739.56

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Solution

The fourth proportional to 21,675.56, 29,912.31 and 11,739.56 is: 16,200.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,675.56 : 29,912.31 = 11,739.56 : x
  2. Step 2: Convert to fraction form
    21,675.56/29,912.31 = 11,739.56/x
  3. Step 3: Cross multiply
    21,675.56x = 29,912.31 × 11,739.56
  4. Step 4: Simplify right side
    21,675.56x = 351,157,357.98
  5. Step 5: Solve for x
    x = 351,157,357.98/21,675.56
  6. Step 6: Final answer
    x = 16,200.61

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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.