Home / 30,245.36-41,750.19-20,170.11

Finding the Fourth Proportional to 30,245.36, 41,750.19 and 20,170.11

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Solution

The fourth proportional to 30,245.36, 41,750.19 and 20,170.11 is: 27,842.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,245.36 : 41,750.19 = 20,170.11 : x
  2. Step 2: Convert to fraction form
    30,245.36/41,750.19 = 20,170.11/x
  3. Step 3: Cross multiply
    30,245.36x = 41,750.19 × 20,170.11
  4. Step 4: Simplify right side
    30,245.36x = 842,105,823.97
  5. Step 5: Solve for x
    x = 842,105,823.97/30,245.36
  6. Step 6: Final answer
    x = 27,842.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.