Home / 21,728.06-29,984.73-11,792.06

Finding the Fourth Proportional to 21,728.06, 29,984.73 and 11,792.06

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Solution

The fourth proportional to 21,728.06, 29,984.73 and 11,792.06 is: 16,273.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,728.06 : 29,984.73 = 11,792.06 : x
  2. Step 2: Convert to fraction form
    21,728.06/29,984.73 = 11,792.06/x
  3. Step 3: Cross multiply
    21,728.06x = 29,984.73 × 11,792.06
  4. Step 4: Simplify right side
    21,728.06x = 353,581,735.24
  5. Step 5: Solve for x
    x = 353,581,735.24/21,728.06
  6. Step 6: Final answer
    x = 16,273.05

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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.