Home / 20,647.49-30,975.85-6,608.36

Finding the Fourth Proportional to 20,647.49, 30,975.85 and 6,608.36

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Solution

The fourth proportional to 20,647.49, 30,975.85 and 6,608.36 is: 9,914.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,647.49 : 30,975.85 = 6,608.36 : x
  2. Step 2: Convert to fraction form
    20,647.49/30,975.85 = 6,608.36/x
  3. Step 3: Cross multiply
    20,647.49x = 30,975.85 × 6,608.36
  4. Step 4: Simplify right side
    20,647.49x = 204,699,396.71
  5. Step 5: Solve for x
    x = 204,699,396.71/20,647.49
  6. Step 6: Final answer
    x = 9,914.01

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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.