Home / 30,161.67-41,622.12-18,222.93

Finding the Fourth Proportional to 30,161.67, 41,622.12 and 18,222.93

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Solution

The fourth proportional to 30,161.67, 41,622.12 and 18,222.93 is: 25,147.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,161.67 : 41,622.12 = 18,222.93 : x
  2. Step 2: Convert to fraction form
    30,161.67/41,622.12 = 18,222.93/x
  3. Step 3: Cross multiply
    30,161.67x = 41,622.12 × 18,222.93
  4. Step 4: Simplify right side
    30,161.67x = 758,476,979.21
  5. Step 5: Solve for x
    x = 758,476,979.21/30,161.67
  6. Step 6: Final answer
    x = 25,147.05

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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.