Home / 19,719.14-29,618.52-11,836.63

Finding the Fourth Proportional to 19,719.14, 29,618.52 and 11,836.63

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Solution

The fourth proportional to 19,719.14, 29,618.52 and 11,836.63 is: 17,778.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,719.14 : 29,618.52 = 11,836.63 : x
  2. Step 2: Convert to fraction form
    19,719.14/29,618.52 = 11,836.63/x
  3. Step 3: Cross multiply
    19,719.14x = 29,618.52 × 11,836.63
  4. Step 4: Simplify right side
    19,719.14x = 350,583,343.95
  5. Step 5: Solve for x
    x = 350,583,343.95/19,719.14
  6. Step 6: Final answer
    x = 17,778.83

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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.