Home / 21,202.58-29,260.44-11,771.14

Finding the Fourth Proportional to 21,202.58, 29,260.44 and 11,771.14

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Solution

The fourth proportional to 21,202.58, 29,260.44 and 11,771.14 is: 16,244.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,202.58 : 29,260.44 = 11,771.14 : x
  2. Step 2: Convert to fraction form
    21,202.58/29,260.44 = 11,771.14/x
  3. Step 3: Cross multiply
    21,202.58x = 29,260.44 × 11,771.14
  4. Step 4: Simplify right side
    21,202.58x = 344,428,735.70
  5. Step 5: Solve for x
    x = 344,428,735.70/21,202.58
  6. Step 6: Final answer
    x = 16,244.66

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1.5x scale

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.