Home / 30,433.03-41,975.34-20,343.73

Finding the Fourth Proportional to 30,433.03, 41,975.34 and 20,343.73

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Solution

The fourth proportional to 30,433.03, 41,975.34 and 20,343.73 is: 28,059.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,433.03 : 41,975.34 = 20,343.73 : x
  2. Step 2: Convert to fraction form
    30,433.03/41,975.34 = 20,343.73/x
  3. Step 3: Cross multiply
    30,433.03x = 41,975.34 × 20,343.73
  4. Step 4: Simplify right side
    30,433.03x = 853,934,983.62
  5. Step 5: Solve for x
    x = 853,934,983.62/30,433.03
  6. Step 6: Final answer
    x = 28,059.48

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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.