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Finding the Fourth Proportional to 38,790, 58,185 and 14,166

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Solution

The fourth proportional to 38,790, 58,185 and 14,166 is: 21,249

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,790 : 58,185 = 14,166 : x
  2. Step 2: Convert to fraction form
    38,790/58,185 = 14,166/x
  3. Step 3: Cross multiply
    38,790x = 58,185 × 14,166
  4. Step 4: Simplify right side
    38,790x = 824,248,710
  5. Step 5: Solve for x
    x = 824,248,710/38,790
  6. Step 6: Final answer
    x = 21,249

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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.