Home / 20,769.44-30,995.21-18,553.28

Finding the Fourth Proportional to 20,769.44, 30,995.21 and 18,553.28

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Solution

The fourth proportional to 20,769.44, 30,995.21 and 18,553.28 is: 27,687.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,769.44 : 30,995.21 = 18,553.28 : x
  2. Step 2: Convert to fraction form
    20,769.44/30,995.21 = 18,553.28/x
  3. Step 3: Cross multiply
    20,769.44x = 30,995.21 × 18,553.28
  4. Step 4: Simplify right side
    20,769.44x = 575,062,562.05
  5. Step 5: Solve for x
    x = 575,062,562.05/20,769.44
  6. Step 6: Final answer
    x = 27,687.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.