Home / 20,286.69-27,995.11-11,334.25

Finding the Fourth Proportional to 20,286.69, 27,995.11 and 11,334.25

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Solution

The fourth proportional to 20,286.69, 27,995.11 and 11,334.25 is: 15,640.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,286.69 : 27,995.11 = 11,334.25 : x
  2. Step 2: Convert to fraction form
    20,286.69/27,995.11 = 11,334.25/x
  3. Step 3: Cross multiply
    20,286.69x = 27,995.11 × 11,334.25
  4. Step 4: Simplify right side
    20,286.69x = 317,303,582.18
  5. Step 5: Solve for x
    x = 317,303,582.18/20,286.69
  6. Step 6: Final answer
    x = 15,640.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.