Home / 27,639.01-38,153.19-18,698.64

Finding the Fourth Proportional to 27,639.01, 38,153.19 and 18,698.64

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Solution

The fourth proportional to 27,639.01, 38,153.19 and 18,698.64 is: 25,811.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,639.01 : 38,153.19 = 18,698.64 : x
  2. Step 2: Convert to fraction form
    27,639.01/38,153.19 = 18,698.64/x
  3. Step 3: Cross multiply
    27,639.01x = 38,153.19 × 18,698.64
  4. Step 4: Simplify right side
    27,639.01x = 713,412,764.66
  5. Step 5: Solve for x
    x = 713,412,764.66/27,639.01
  6. Step 6: Final answer
    x = 25,811.81

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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.