Home / 22,279.34-30,745.39-12,207.77

Finding the Fourth Proportional to 22,279.34, 30,745.39 and 12,207.77

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Solution

The fourth proportional to 22,279.34, 30,745.39 and 12,207.77 is: 16,846.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,279.34 : 30,745.39 = 12,207.77 : x
  2. Step 2: Convert to fraction form
    22,279.34/30,745.39 = 12,207.77/x
  3. Step 3: Cross multiply
    22,279.34x = 30,745.39 × 12,207.77
  4. Step 4: Simplify right side
    22,279.34x = 375,332,649.68
  5. Step 5: Solve for x
    x = 375,332,649.68/22,279.34
  6. Step 6: Final answer
    x = 16,846.67

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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.