Home / 33,819.78-46,668.34-18,712.20

Finding the Fourth Proportional to 33,819.78, 46,668.34 and 18,712.20

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Solution

The fourth proportional to 33,819.78, 46,668.34 and 18,712.20 is: 25,821.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,819.78 : 46,668.34 = 18,712.20 : x
  2. Step 2: Convert to fraction form
    33,819.78/46,668.34 = 18,712.20/x
  3. Step 3: Cross multiply
    33,819.78x = 46,668.34 × 18,712.20
  4. Step 4: Simplify right side
    33,819.78x = 873,267,311.75
  5. Step 5: Solve for x
    x = 873,267,311.75/33,819.78
  6. Step 6: Final answer
    x = 25,821.20

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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.