Home / 30,189.78-41,661.36-16,760.34

Finding the Fourth Proportional to 30,189.78, 41,661.36 and 16,760.34

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Solution

The fourth proportional to 30,189.78, 41,661.36 and 16,760.34 is: 23,128.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,189.78 : 41,661.36 = 16,760.34 : x
  2. Step 2: Convert to fraction form
    30,189.78/41,661.36 = 16,760.34/x
  3. Step 3: Cross multiply
    30,189.78x = 41,661.36 × 16,760.34
  4. Step 4: Simplify right side
    30,189.78x = 698,258,558.46
  5. Step 5: Solve for x
    x = 698,258,558.46/30,189.78
  6. Step 6: Final answer
    x = 23,128.97

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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.