Home / 36,821.70-50,819.72-21,716.02

Finding the Fourth Proportional to 36,821.70, 50,819.72 and 21,716.02

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Solution

The fourth proportional to 36,821.70, 50,819.72 and 21,716.02 is: 29,971.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,821.70 : 50,819.72 = 21,716.02 : x
  2. Step 2: Convert to fraction form
    36,821.70/50,819.72 = 21,716.02/x
  3. Step 3: Cross multiply
    36,821.70x = 50,819.72 × 21,716.02
  4. Step 4: Simplify right side
    36,821.70x = 1,103,602,253.04
  5. Step 5: Solve for x
    x = 1,103,602,253.04/36,821.70
  6. Step 6: Final answer
    x = 29,971.52

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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.