Home / 30,162.20-41,624.93-18,223.22

Finding the Fourth Proportional to 30,162.20, 41,624.93 and 18,223.22

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Solution

The fourth proportional to 30,162.20, 41,624.93 and 18,223.22 is: 25,148.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,162.20 : 41,624.93 = 18,223.22 : x
  2. Step 2: Convert to fraction form
    30,162.20/41,624.93 = 18,223.22/x
  3. Step 3: Cross multiply
    30,162.20x = 41,624.93 × 18,223.22
  4. Step 4: Simplify right side
    30,162.20x = 758,540,406.49
  5. Step 5: Solve for x
    x = 758,540,406.49/30,162.20
  6. Step 6: Final answer
    x = 25,148.71

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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.