Home / 38,638.08-57,965.42-11,983.51

Finding the Fourth Proportional to 38,638.08, 57,965.42 and 11,983.51

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Solution

The fourth proportional to 38,638.08, 57,965.42 and 11,983.51 is: 17,977.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,638.08 : 57,965.42 = 11,983.51 : x
  2. Step 2: Convert to fraction form
    38,638.08/57,965.42 = 11,983.51/x
  3. Step 3: Cross multiply
    38,638.08x = 57,965.42 × 11,983.51
  4. Step 4: Simplify right side
    38,638.08x = 694,629,292.64
  5. Step 5: Solve for x
    x = 694,629,292.64/38,638.08
  6. Step 6: Final answer
    x = 17,977.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.