Home / 27,994.18-38,629.42-16,661.86

Finding the Fourth Proportional to 27,994.18, 38,629.42 and 16,661.86

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Solution

The fourth proportional to 27,994.18, 38,629.42 and 16,661.86 is: 22,991.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,994.18 : 38,629.42 = 16,661.86 : x
  2. Step 2: Convert to fraction form
    27,994.18/38,629.42 = 16,661.86/x
  3. Step 3: Cross multiply
    27,994.18x = 38,629.42 × 16,661.86
  4. Step 4: Simplify right side
    27,994.18x = 643,637,987.92
  5. Step 5: Solve for x
    x = 643,637,987.92/27,994.18
  6. Step 6: Final answer
    x = 22,991.85

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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.