Home / 13,721.84-20,582.76-3,333.52

Finding the Fourth Proportional to 13,721.84, 20,582.76 and 3,333.52

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Solution

The fourth proportional to 13,721.84, 20,582.76 and 3,333.52 is: 5,000.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,721.84 : 20,582.76 = 3,333.52 : x
  2. Step 2: Convert to fraction form
    13,721.84/20,582.76 = 3,333.52/x
  3. Step 3: Cross multiply
    13,721.84x = 20,582.76 × 3,333.52
  4. Step 4: Simplify right side
    13,721.84x = 68,613,042.12
  5. Step 5: Solve for x
    x = 68,613,042.12/13,721.84
  6. Step 6: Final answer
    x = 5,000.28

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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.