Home / 20,816.44-31,229.26-9,717.07

Finding the Fourth Proportional to 20,816.44, 31,229.26 and 9,717.07

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Solution

The fourth proportional to 20,816.44, 31,229.26 and 9,717.07 is: 14,577.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,816.44 : 31,229.26 = 9,717.07 : x
  2. Step 2: Convert to fraction form
    20,816.44/31,229.26 = 9,717.07/x
  3. Step 3: Cross multiply
    20,816.44x = 31,229.26 × 9,717.07
  4. Step 4: Simplify right side
    20,816.44x = 303,456,749.32
  5. Step 5: Solve for x
    x = 303,456,749.32/20,816.44
  6. Step 6: Final answer
    x = 14,577.75

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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.