Home / 13,355.86-20,033.49-3,995.89

Finding the Fourth Proportional to 13,355.86, 20,033.49 and 3,995.89

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Solution

The fourth proportional to 13,355.86, 20,033.49 and 3,995.89 is: 5,993.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,355.86 : 20,033.49 = 3,995.89 : x
  2. Step 2: Convert to fraction form
    13,355.86/20,033.49 = 3,995.89/x
  3. Step 3: Cross multiply
    13,355.86x = 20,033.49 × 3,995.89
  4. Step 4: Simplify right side
    13,355.86x = 80,051,622.36
  5. Step 5: Solve for x
    x = 80,051,622.36/13,355.86
  6. Step 6: Final answer
    x = 5,993.75

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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.