Home / 13,721.33-20,581.98-3,333.08

Finding the Fourth Proportional to 13,721.33, 20,581.98 and 3,333.08

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Solution

The fourth proportional to 13,721.33, 20,581.98 and 3,333.08 is: 4,999.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,721.33 : 20,581.98 = 3,333.08 : x
  2. Step 2: Convert to fraction form
    13,721.33/20,581.98 = 3,333.08/x
  3. Step 3: Cross multiply
    13,721.33x = 20,581.98 × 3,333.08
  4. Step 4: Simplify right side
    13,721.33x = 68,601,282.99
  5. Step 5: Solve for x
    x = 68,601,282.99/13,721.33
  6. Step 6: Final answer
    x = 4,999.61

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Similar ratio
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1.5x scale

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.