Home / 33,245.84-45,879.27-21,309.18

Finding the Fourth Proportional to 33,245.84, 45,879.27 and 21,309.18

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Solution

The fourth proportional to 33,245.84, 45,879.27 and 21,309.18 is: 29,406.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,245.84 : 45,879.27 = 21,309.18 : x
  2. Step 2: Convert to fraction form
    33,245.84/45,879.27 = 21,309.18/x
  3. Step 3: Cross multiply
    33,245.84x = 45,879.27 × 21,309.18
  4. Step 4: Simplify right side
    33,245.84x = 977,649,370.74
  5. Step 5: Solve for x
    x = 977,649,370.74/33,245.84
  6. Step 6: Final answer
    x = 29,406.67

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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.