Home / 45,306.54-67,982.09-20,364.21

Finding the Fourth Proportional to 45,306.54, 67,982.09 and 20,364.21

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Solution

The fourth proportional to 45,306.54, 67,982.09 and 20,364.21 is: 30,556.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,306.54 : 67,982.09 = 20,364.21 : x
  2. Step 2: Convert to fraction form
    45,306.54/67,982.09 = 20,364.21/x
  3. Step 3: Cross multiply
    45,306.54x = 67,982.09 × 20,364.21
  4. Step 4: Simplify right side
    45,306.54x = 1,384,401,455.18
  5. Step 5: Solve for x
    x = 1,384,401,455.18/45,306.54
  6. Step 6: Final answer
    x = 30,556.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.