Home / 20,054.39-30,109.19-10,200.33

Finding the Fourth Proportional to 20,054.39, 30,109.19 and 10,200.33

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Solution

The fourth proportional to 20,054.39, 30,109.19 and 10,200.33 is: 15,314.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,054.39 : 30,109.19 = 10,200.33 : x
  2. Step 2: Convert to fraction form
    20,054.39/30,109.19 = 10,200.33/x
  3. Step 3: Cross multiply
    20,054.39x = 30,109.19 × 10,200.33
  4. Step 4: Simplify right side
    20,054.39x = 307,123,623.03
  5. Step 5: Solve for x
    x = 307,123,623.03/20,054.39
  6. Step 6: Final answer
    x = 15,314.54

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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.