Home / 21,728.26-29,984.98-11,792.26

Finding the Fourth Proportional to 21,728.26, 29,984.98 and 11,792.26

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Solution

The fourth proportional to 21,728.26, 29,984.98 and 11,792.26 is: 16,273.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,728.26 : 29,984.98 = 11,792.26 : x
  2. Step 2: Convert to fraction form
    21,728.26/29,984.98 = 11,792.26/x
  3. Step 3: Cross multiply
    21,728.26x = 29,984.98 × 11,792.26
  4. Step 4: Simplify right side
    21,728.26x = 353,590,680.25
  5. Step 5: Solve for x
    x = 353,590,680.25/21,728.26
  6. Step 6: Final answer
    x = 16,273.31

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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.