Home / 18,830.14-28,245.37-4,790.18

Finding the Fourth Proportional to 18,830.14, 28,245.37 and 4,790.18

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Solution

The fourth proportional to 18,830.14, 28,245.37 and 4,790.18 is: 7,185.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,830.14 : 28,245.37 = 4,790.18 : x
  2. Step 2: Convert to fraction form
    18,830.14/28,245.37 = 4,790.18/x
  3. Step 3: Cross multiply
    18,830.14x = 28,245.37 × 4,790.18
  4. Step 4: Simplify right side
    18,830.14x = 135,300,323.88
  5. Step 5: Solve for x
    x = 135,300,323.88/18,830.14
  6. Step 6: Final answer
    x = 7,185.31

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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.