Home / 36,007.40-49,716.78-21,879.20

Finding the Fourth Proportional to 36,007.40, 49,716.78 and 21,879.20

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Solution

The fourth proportional to 36,007.40, 49,716.78 and 21,879.20 is: 30,209.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,007.40 : 49,716.78 = 21,879.20 : x
  2. Step 2: Convert to fraction form
    36,007.40/49,716.78 = 21,879.20/x
  3. Step 3: Cross multiply
    36,007.40x = 49,716.78 × 21,879.20
  4. Step 4: Simplify right side
    36,007.40x = 1,087,763,372.98
  5. Step 5: Solve for x
    x = 1,087,763,372.98/36,007.40
  6. Step 6: Final answer
    x = 30,209.44

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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.