Home / 28,286.34-42,440.85-11,654.61

Finding the Fourth Proportional to 28,286.34, 42,440.85 and 11,654.61

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Solution

The fourth proportional to 28,286.34, 42,440.85 and 11,654.61 is: 17,486.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,286.34 : 42,440.85 = 11,654.61 : x
  2. Step 2: Convert to fraction form
    28,286.34/42,440.85 = 11,654.61/x
  3. Step 3: Cross multiply
    28,286.34x = 42,440.85 × 11,654.61
  4. Step 4: Simplify right side
    28,286.34x = 494,631,554.82
  5. Step 5: Solve for x
    x = 494,631,554.82/28,286.34
  6. Step 6: Final answer
    x = 17,486.59

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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.