Home / 19,788.14-29,696.74-15,939.02

Finding the Fourth Proportional to 19,788.14, 29,696.74 and 15,939.02

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Solution

The fourth proportional to 19,788.14, 29,696.74 and 15,939.02 is: 23,920.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,788.14 : 29,696.74 = 15,939.02 : x
  2. Step 2: Convert to fraction form
    19,788.14/29,696.74 = 15,939.02/x
  3. Step 3: Cross multiply
    19,788.14x = 29,696.74 × 15,939.02
  4. Step 4: Simplify right side
    19,788.14x = 473,336,932.79
  5. Step 5: Solve for x
    x = 473,336,932.79/19,788.14
  6. Step 6: Final answer
    x = 23,920.23

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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.