Home / 28,738.23-43,107.39-9,018.33

Finding the Fourth Proportional to 28,738.23, 43,107.39 and 9,018.33

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Solution

The fourth proportional to 28,738.23, 43,107.39 and 9,018.33 is: 13,527.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,738.23 : 43,107.39 = 9,018.33 : x
  2. Step 2: Convert to fraction form
    28,738.23/43,107.39 = 9,018.33/x
  3. Step 3: Cross multiply
    28,738.23x = 43,107.39 × 9,018.33
  4. Step 4: Simplify right side
    28,738.23x = 388,756,668.46
  5. Step 5: Solve for x
    x = 388,756,668.46/28,738.23
  6. Step 6: Final answer
    x = 13,527.51

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Double scale
Find fourth proportional to 28,739.23, 43,108.89 and 9,019.33
Similar ratio
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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.