Home / 28,806-43,111.40-17,719.70

Finding the Fourth Proportional to 28,806, 43,111.40 and 17,719.70

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Solution

The fourth proportional to 28,806, 43,111.40 and 17,719.70 is: 26,519.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,806 : 43,111.40 = 17,719.70 : x
  2. Step 2: Convert to fraction form
    28,806/43,111.40 = 17,719.70/x
  3. Step 3: Cross multiply
    28,806x = 43,111.40 × 17,719.70
  4. Step 4: Simplify right side
    28,806x = 763,921,074.58
  5. Step 5: Solve for x
    x = 763,921,074.58/28,806
  6. Step 6: Final answer
    x = 26,519.51

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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.