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Finding the Fourth Proportional to 28,053.91, 38,717.82 and 16,117.21

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Solution

The fourth proportional to 28,053.91, 38,717.82 and 16,117.21 is: 22,243.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,053.91 : 38,717.82 = 16,117.21 : x
  2. Step 2: Convert to fraction form
    28,053.91/38,717.82 = 16,117.21/x
  3. Step 3: Cross multiply
    28,053.91x = 38,717.82 × 16,117.21
  4. Step 4: Simplify right side
    28,053.91x = 624,023,235.68
  5. Step 5: Solve for x
    x = 624,023,235.68/28,053.91
  6. Step 6: Final answer
    x = 22,243.72

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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.