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Finding the Fourth Proportional to 28,716.84, 43,060.02 and 11,169

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Solution

The fourth proportional to 28,716.84, 43,060.02 and 11,169 is: 16,747.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,716.84 : 43,060.02 = 11,169 : x
  2. Step 2: Convert to fraction form
    28,716.84/43,060.02 = 11,169/x
  3. Step 3: Cross multiply
    28,716.84x = 43,060.02 × 11,169
  4. Step 4: Simplify right side
    28,716.84x = 480,937,363.38
  5. Step 5: Solve for x
    x = 480,937,363.38/28,716.84
  6. Step 6: Final answer
    x = 16,747.57

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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.