Home / 20,012.69-30,020.72-5,971.79

Finding the Fourth Proportional to 20,012.69, 30,020.72 and 5,971.79

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Solution

The fourth proportional to 20,012.69, 30,020.72 and 5,971.79 is: 8,958.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,012.69 : 30,020.72 = 5,971.79 : x
  2. Step 2: Convert to fraction form
    20,012.69/30,020.72 = 5,971.79/x
  3. Step 3: Cross multiply
    20,012.69x = 30,020.72 × 5,971.79
  4. Step 4: Simplify right side
    20,012.69x = 179,277,480.68
  5. Step 5: Solve for x
    x = 179,277,480.68/20,012.69
  6. Step 6: Final answer
    x = 8,958.19

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1.5x scale

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.