Home / 33,661.20-46,435.92-21,720

Finding the Fourth Proportional to 33,661.20, 46,435.92 and 21,720

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Solution

The fourth proportional to 33,661.20, 46,435.92 and 21,720 is: 29,962.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,661.20 : 46,435.92 = 21,720 : x
  2. Step 2: Convert to fraction form
    33,661.20/46,435.92 = 21,720/x
  3. Step 3: Cross multiply
    33,661.20x = 46,435.92 × 21,720
  4. Step 4: Simplify right side
    33,661.20x = 1,008,588,182.40
  5. Step 5: Solve for x
    x = 1,008,588,182.40/33,661.20
  6. Step 6: Final answer
    x = 29,962.93

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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.