Home / 36,021.69-49,716.41-21,486.78

Finding the Fourth Proportional to 36,021.69, 49,716.41 and 21,486.78

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Solution

The fourth proportional to 36,021.69, 49,716.41 and 21,486.78 is: 29,655.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,021.69 : 49,716.41 = 21,486.78 : x
  2. Step 2: Convert to fraction form
    36,021.69/49,716.41 = 21,486.78/x
  3. Step 3: Cross multiply
    36,021.69x = 49,716.41 × 21,486.78
  4. Step 4: Simplify right side
    36,021.69x = 1,068,245,456.63
  5. Step 5: Solve for x
    x = 1,068,245,456.63/36,021.69
  6. Step 6: Final answer
    x = 29,655.62

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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.