Home / 20,908.62-31,356.32-6,866.33

Finding the Fourth Proportional to 20,908.62, 31,356.32 and 6,866.33

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Solution

The fourth proportional to 20,908.62, 31,356.32 and 6,866.33 is: 10,297.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,908.62 : 31,356.32 = 6,866.33 : x
  2. Step 2: Convert to fraction form
    20,908.62/31,356.32 = 6,866.33/x
  3. Step 3: Cross multiply
    20,908.62x = 31,356.32 × 6,866.33
  4. Step 4: Simplify right side
    20,908.62x = 215,302,806.37
  5. Step 5: Solve for x
    x = 215,302,806.37/20,908.62
  6. Step 6: Final answer
    x = 10,297.32

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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.