Home / 28,047.28-41,942.98-20,936.56

Finding the Fourth Proportional to 28,047.28, 41,942.98 and 20,936.56

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Solution

The fourth proportional to 28,047.28, 41,942.98 and 20,936.56 is: 31,309.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,047.28 : 41,942.98 = 20,936.56 : x
  2. Step 2: Convert to fraction form
    28,047.28/41,942.98 = 20,936.56/x
  3. Step 3: Cross multiply
    28,047.28x = 41,942.98 × 20,936.56
  4. Step 4: Simplify right side
    28,047.28x = 878,141,717.35
  5. Step 5: Solve for x
    x = 878,141,717.35/28,047.28
  6. Step 6: Final answer
    x = 31,309.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.