Home / 22,319.81-33,481.67-8,279.99

Finding the Fourth Proportional to 22,319.81, 33,481.67 and 8,279.99

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Solution

The fourth proportional to 22,319.81, 33,481.67 and 8,279.99 is: 12,420.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,319.81 : 33,481.67 = 8,279.99 : x
  2. Step 2: Convert to fraction form
    22,319.81/33,481.67 = 8,279.99/x
  3. Step 3: Cross multiply
    22,319.81x = 33,481.67 × 8,279.99
  4. Step 4: Simplify right side
    22,319.81x = 277,227,746.07
  5. Step 5: Solve for x
    x = 277,227,746.07/22,319.81
  6. Step 6: Final answer
    x = 12,420.71

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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.