Home / 18,431.75-27,647.33-5,283.83

Finding the Fourth Proportional to 18,431.75, 27,647.33 and 5,283.83

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Solution

The fourth proportional to 18,431.75, 27,647.33 and 5,283.83 is: 7,925.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,431.75 : 27,647.33 = 5,283.83 : x
  2. Step 2: Convert to fraction form
    18,431.75/27,647.33 = 5,283.83/x
  3. Step 3: Cross multiply
    18,431.75x = 27,647.33 × 5,283.83
  4. Step 4: Simplify right side
    18,431.75x = 146,083,834.37
  5. Step 5: Solve for x
    x = 146,083,834.37/18,431.75
  6. Step 6: Final answer
    x = 7,925.66

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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.