Home / 30,121.07-41,568.15-18,182.07

Finding the Fourth Proportional to 30,121.07, 41,568.15 and 18,182.07

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Solution

The fourth proportional to 30,121.07, 41,568.15 and 18,182.07 is: 25,091.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,121.07 : 41,568.15 = 18,182.07 : x
  2. Step 2: Convert to fraction form
    30,121.07/41,568.15 = 18,182.07/x
  3. Step 3: Cross multiply
    30,121.07x = 41,568.15 × 18,182.07
  4. Step 4: Simplify right side
    30,121.07x = 755,795,013.07
  5. Step 5: Solve for x
    x = 755,795,013.07/30,121.07
  6. Step 6: Final answer
    x = 25,091.90

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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.