Home / 38,080.84-57,121.44-11,785.72

Finding the Fourth Proportional to 38,080.84, 57,121.44 and 11,785.72

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Solution

The fourth proportional to 38,080.84, 57,121.44 and 11,785.72 is: 17,678.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,080.84 : 57,121.44 = 11,785.72 : x
  2. Step 2: Convert to fraction form
    38,080.84/57,121.44 = 11,785.72/x
  3. Step 3: Cross multiply
    38,080.84x = 57,121.44 × 11,785.72
  4. Step 4: Simplify right side
    38,080.84x = 673,217,297.84
  5. Step 5: Solve for x
    x = 673,217,297.84/38,080.84
  6. Step 6: Final answer
    x = 17,678.64

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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.