Home / 48,718.20-73,021.91-20,620.71

Finding the Fourth Proportional to 48,718.20, 73,021.91 and 20,620.71

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Solution

The fourth proportional to 48,718.20, 73,021.91 and 20,620.71 is: 30,907.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,718.20 : 73,021.91 = 20,620.71 : x
  2. Step 2: Convert to fraction form
    48,718.20/73,021.91 = 20,620.71/x
  3. Step 3: Cross multiply
    48,718.20x = 73,021.91 × 20,620.71
  4. Step 4: Simplify right side
    48,718.20x = 1,505,763,526.65
  5. Step 5: Solve for x
    x = 1,505,763,526.65/48,718.20
  6. Step 6: Final answer
    x = 30,907.62

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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.