Home / 26,990.31-37,249.27-20,172.48

Finding the Fourth Proportional to 26,990.31, 37,249.27 and 20,172.48

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Solution

The fourth proportional to 26,990.31, 37,249.27 and 20,172.48 is: 27,839.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,990.31 : 37,249.27 = 20,172.48 : x
  2. Step 2: Convert to fraction form
    26,990.31/37,249.27 = 20,172.48/x
  3. Step 3: Cross multiply
    26,990.31x = 37,249.27 × 20,172.48
  4. Step 4: Simplify right side
    26,990.31x = 751,409,963.97
  5. Step 5: Solve for x
    x = 751,409,963.97/26,990.31
  6. Step 6: Final answer
    x = 27,839.99

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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.