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Finding the Fourth Proportional to 20,160.84, 27,806.56 and 17,894.56

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Solution

The fourth proportional to 20,160.84, 27,806.56 and 17,894.56 is: 24,680.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.84 : 27,806.56 = 17,894.56 : x
  2. Step 2: Convert to fraction form
    20,160.84/27,806.56 = 17,894.56/x
  3. Step 3: Cross multiply
    20,160.84x = 27,806.56 × 17,894.56
  4. Step 4: Simplify right side
    20,160.84x = 497,586,156.31
  5. Step 5: Solve for x
    x = 497,586,156.31/20,160.84
  6. Step 6: Final answer
    x = 24,680.82

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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.