Home / 39,792.21-54,911.22-21,883.77

Finding the Fourth Proportional to 39,792.21, 54,911.22 and 21,883.77

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Solution

The fourth proportional to 39,792.21, 54,911.22 and 21,883.77 is: 30,198.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,792.21 : 54,911.22 = 21,883.77 : x
  2. Step 2: Convert to fraction form
    39,792.21/54,911.22 = 21,883.77/x
  3. Step 3: Cross multiply
    39,792.21x = 54,911.22 × 21,883.77
  4. Step 4: Simplify right side
    39,792.21x = 1,201,664,426.84
  5. Step 5: Solve for x
    x = 1,201,664,426.84/39,792.21
  6. Step 6: Final answer
    x = 30,198.48

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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.