Home / 20,932.49-31,403.36-6,896.85

Finding the Fourth Proportional to 20,932.49, 31,403.36 and 6,896.85

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Solution

The fourth proportional to 20,932.49, 31,403.36 and 6,896.85 is: 10,346.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,932.49 : 31,403.36 = 6,896.85 : x
  2. Step 2: Convert to fraction form
    20,932.49/31,403.36 = 6,896.85/x
  3. Step 3: Cross multiply
    20,932.49x = 31,403.36 × 6,896.85
  4. Step 4: Simplify right side
    20,932.49x = 216,584,162.90
  5. Step 5: Solve for x
    x = 216,584,162.90/20,932.49
  6. Step 6: Final answer
    x = 10,346.79

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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.