Home / 18,923.67-28,391.67-5,776.02

Finding the Fourth Proportional to 18,923.67, 28,391.67 and 5,776.02

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Solution

The fourth proportional to 18,923.67, 28,391.67 and 5,776.02 is: 8,665.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,923.67 : 28,391.67 = 5,776.02 : x
  2. Step 2: Convert to fraction form
    18,923.67/28,391.67 = 5,776.02/x
  3. Step 3: Cross multiply
    18,923.67x = 28,391.67 × 5,776.02
  4. Step 4: Simplify right side
    18,923.67x = 163,990,853.75
  5. Step 5: Solve for x
    x = 163,990,853.75/18,923.67
  6. Step 6: Final answer
    x = 8,665.91

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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.