Home / 33,071.21-45,620.77-20,950.31

Finding the Fourth Proportional to 33,071.21, 45,620.77 and 20,950.31

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Solution

The fourth proportional to 33,071.21, 45,620.77 and 20,950.31 is: 28,900.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,071.21 : 45,620.77 = 20,950.31 : x
  2. Step 2: Convert to fraction form
    33,071.21/45,620.77 = 20,950.31/x
  3. Step 3: Cross multiply
    33,071.21x = 45,620.77 × 20,950.31
  4. Step 4: Simplify right side
    33,071.21x = 955,768,993.46
  5. Step 5: Solve for x
    x = 955,768,993.46/33,071.21
  6. Step 6: Final answer
    x = 28,900.34

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Half scale
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Double scale
Find fourth proportional to 33,072.21, 45,622.15 and 20,951.31
Similar ratio
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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.