Home / 39,600.60-54,648.30-21,694.51

Finding the Fourth Proportional to 39,600.60, 54,648.30 and 21,694.51

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Solution

The fourth proportional to 39,600.60, 54,648.30 and 21,694.51 is: 29,938.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,600.60 : 54,648.30 = 21,694.51 : x
  2. Step 2: Convert to fraction form
    39,600.60/54,648.30 = 21,694.51/x
  3. Step 3: Cross multiply
    39,600.60x = 54,648.30 × 21,694.51
  4. Step 4: Simplify right side
    39,600.60x = 1,185,568,090.83
  5. Step 5: Solve for x
    x = 1,185,568,090.83/39,600.60
  6. Step 6: Final answer
    x = 29,938.13

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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.