Home / 20,718.72-31,064.04-6,674.54

Finding the Fourth Proportional to 20,718.72, 31,064.04 and 6,674.54

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Solution

The fourth proportional to 20,718.72, 31,064.04 and 6,674.54 is: 10,007.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718.72 : 31,064.04 = 6,674.54 : x
  2. Step 2: Convert to fraction form
    20,718.72/31,064.04 = 6,674.54/x
  3. Step 3: Cross multiply
    20,718.72x = 31,064.04 × 6,674.54
  4. Step 4: Simplify right side
    20,718.72x = 207,338,022.22
  5. Step 5: Solve for x
    x = 207,338,022.22/20,718.72
  6. Step 6: Final answer
    x = 10,007.28

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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.