Home / 20,323.94-30,478.23-6,993.15

Finding the Fourth Proportional to 20,323.94, 30,478.23 and 6,993.15

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Solution

The fourth proportional to 20,323.94, 30,478.23 and 6,993.15 is: 10,487.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,323.94 : 30,478.23 = 6,993.15 : x
  2. Step 2: Convert to fraction form
    20,323.94/30,478.23 = 6,993.15/x
  3. Step 3: Cross multiply
    20,323.94x = 30,478.23 × 6,993.15
  4. Step 4: Simplify right side
    20,323.94x = 213,138,834.12
  5. Step 5: Solve for x
    x = 213,138,834.12/20,323.94
  6. Step 6: Final answer
    x = 10,487.09

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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.