Home / 20,866.82-31,286.33-10,846.95

Finding the Fourth Proportional to 20,866.82, 31,286.33 and 10,846.95

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Solution

The fourth proportional to 20,866.82, 31,286.33 and 10,846.95 is: 16,263.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,866.82 : 31,286.33 = 10,846.95 : x
  2. Step 2: Convert to fraction form
    20,866.82/31,286.33 = 10,846.95/x
  3. Step 3: Cross multiply
    20,866.82x = 31,286.33 × 10,846.95
  4. Step 4: Simplify right side
    20,866.82x = 339,361,187.33
  5. Step 5: Solve for x
    x = 339,361,187.33/20,866.82
  6. Step 6: Final answer
    x = 16,263.20

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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.