Home / 15,868.81-23,805.38-5,481.37

Finding the Fourth Proportional to 15,868.81, 23,805.38 and 5,481.37

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Solution

The fourth proportional to 15,868.81, 23,805.38 and 5,481.37 is: 8,222.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,868.81 : 23,805.38 = 5,481.37 : x
  2. Step 2: Convert to fraction form
    15,868.81/23,805.38 = 5,481.37/x
  3. Step 3: Cross multiply
    15,868.81x = 23,805.38 × 5,481.37
  4. Step 4: Simplify right side
    15,868.81x = 130,486,095.77
  5. Step 5: Solve for x
    x = 130,486,095.77/15,868.81
  6. Step 6: Final answer
    x = 8,222.80

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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.