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Finding the Fourth Proportional to 28,022.66, 38,653.56 and 16,683.67

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Solution

The fourth proportional to 28,022.66, 38,653.56 and 16,683.67 is: 23,012.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,022.66 : 38,653.56 = 16,683.67 : x
  2. Step 2: Convert to fraction form
    28,022.66/38,653.56 = 16,683.67/x
  3. Step 3: Cross multiply
    28,022.66x = 38,653.56 × 16,683.67
  4. Step 4: Simplify right side
    28,022.66x = 644,883,239.37
  5. Step 5: Solve for x
    x = 644,883,239.37/28,022.66
  6. Step 6: Final answer
    x = 23,012.92

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.