Home / 19,388.69-29,081.88-6,908.06

Finding the Fourth Proportional to 19,388.69, 29,081.88 and 6,908.06

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Solution

The fourth proportional to 19,388.69, 29,081.88 and 6,908.06 is: 10,361.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,388.69 : 29,081.88 = 6,908.06 : x
  2. Step 2: Convert to fraction form
    19,388.69/29,081.88 = 6,908.06/x
  3. Step 3: Cross multiply
    19,388.69x = 29,081.88 × 6,908.06
  4. Step 4: Simplify right side
    19,388.69x = 200,899,252.45
  5. Step 5: Solve for x
    x = 200,899,252.45/19,388.69
  6. Step 6: Final answer
    x = 10,361.67

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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.