Home / 69,213.13-103,821.94-21,828.68

Finding the Fourth Proportional to 69,213.13, 103,821.94 and 21,828.68

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Solution

The fourth proportional to 69,213.13, 103,821.94 and 21,828.68 is: 32,743.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,213.13 : 103,821.94 = 21,828.68 : x
  2. Step 2: Convert to fraction form
    69,213.13/103,821.94 = 21,828.68/x
  3. Step 3: Cross multiply
    69,213.13x = 103,821.94 × 21,828.68
  4. Step 4: Simplify right side
    69,213.13x = 2,266,295,905.24
  5. Step 5: Solve for x
    x = 2,266,295,905.24/69,213.13
  6. Step 6: Final answer
    x = 32,743.73

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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.