Home / 21,792.78-29,864.57-19,693.26

Finding the Fourth Proportional to 21,792.78, 29,864.57 and 19,693.26

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Solution

The fourth proportional to 21,792.78, 29,864.57 and 19,693.26 is: 26,987.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,792.78 : 29,864.57 = 19,693.26 : x
  2. Step 2: Convert to fraction form
    21,792.78/29,864.57 = 19,693.26/x
  3. Step 3: Cross multiply
    21,792.78x = 29,864.57 × 19,693.26
  4. Step 4: Simplify right side
    21,792.78x = 588,130,643.33
  5. Step 5: Solve for x
    x = 588,130,643.33/21,792.78
  6. Step 6: Final answer
    x = 26,987.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.