Home / 20,476.06-30,695.81-7,993.19

Finding the Fourth Proportional to 20,476.06, 30,695.81 and 7,993.19

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Solution

The fourth proportional to 20,476.06, 30,695.81 and 7,993.19 is: 11,982.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,476.06 : 30,695.81 = 7,993.19 : x
  2. Step 2: Convert to fraction form
    20,476.06/30,695.81 = 7,993.19/x
  3. Step 3: Cross multiply
    20,476.06x = 30,695.81 × 7,993.19
  4. Step 4: Simplify right side
    20,476.06x = 245,357,441.53
  5. Step 5: Solve for x
    x = 245,357,441.53/20,476.06
  6. Step 6: Final answer
    x = 11,982.65

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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.