Home / 21,796.47-30,083.70-13,836.99

Finding the Fourth Proportional to 21,796.47, 30,083.70 and 13,836.99

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Solution

The fourth proportional to 21,796.47, 30,083.70 and 13,836.99 is: 19,097.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,796.47 : 30,083.70 = 13,836.99 : x
  2. Step 2: Convert to fraction form
    21,796.47/30,083.70 = 13,836.99/x
  3. Step 3: Cross multiply
    21,796.47x = 30,083.70 × 13,836.99
  4. Step 4: Simplify right side
    21,796.47x = 416,267,856.06
  5. Step 5: Solve for x
    x = 416,267,856.06/21,796.47
  6. Step 6: Final answer
    x = 19,097.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.