Home / 39,696.83-54,781.41-21,792.14

Finding the Fourth Proportional to 39,696.83, 54,781.41 and 21,792.14

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Solution

The fourth proportional to 39,696.83, 54,781.41 and 21,792.14 is: 30,073.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,696.83 : 54,781.41 = 21,792.14 : x
  2. Step 2: Convert to fraction form
    39,696.83/54,781.41 = 21,792.14/x
  3. Step 3: Cross multiply
    39,696.83x = 54,781.41 × 21,792.14
  4. Step 4: Simplify right side
    39,696.83x = 1,193,804,156.12
  5. Step 5: Solve for x
    x = 1,193,804,156.12/39,696.83
  6. Step 6: Final answer
    x = 30,073.03

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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.