Home / 26,400.84-39,568.00-18,865.15

Finding the Fourth Proportional to 26,400.84, 39,568.00 and 18,865.15

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Solution

The fourth proportional to 26,400.84, 39,568.00 and 18,865.15 is: 28,273.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,400.84 : 39,568.00 = 18,865.15 : x
  2. Step 2: Convert to fraction form
    26,400.84/39,568.00 = 18,865.15/x
  3. Step 3: Cross multiply
    26,400.84x = 39,568.00 × 18,865.15
  4. Step 4: Simplify right side
    26,400.84x = 746,456,144.49
  5. Step 5: Solve for x
    x = 746,456,144.49/26,400.84
  6. Step 6: Final answer
    x = 28,273.95

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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.