Home / 21,202.75-29,260.71-11,771.31

Finding the Fourth Proportional to 21,202.75, 29,260.71 and 11,771.31

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Solution

The fourth proportional to 21,202.75, 29,260.71 and 11,771.31 is: 16,244.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,202.75 : 29,260.71 = 11,771.31 : x
  2. Step 2: Convert to fraction form
    21,202.75/29,260.71 = 11,771.31/x
  3. Step 3: Cross multiply
    21,202.75x = 29,260.71 × 11,771.31
  4. Step 4: Simplify right side
    21,202.75x = 344,436,888.23
  5. Step 5: Solve for x
    x = 344,436,888.23/21,202.75
  6. Step 6: Final answer
    x = 16,244.92

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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.