Home / 22,351.63-30,845.11-12,142.57

Finding the Fourth Proportional to 22,351.63, 30,845.11 and 12,142.57

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Solution

The fourth proportional to 22,351.63, 30,845.11 and 12,142.57 is: 16,756.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,351.63 : 30,845.11 = 12,142.57 : x
  2. Step 2: Convert to fraction form
    22,351.63/30,845.11 = 12,142.57/x
  3. Step 3: Cross multiply
    22,351.63x = 30,845.11 × 12,142.57
  4. Step 4: Simplify right side
    22,351.63x = 374,538,907.33
  5. Step 5: Solve for x
    x = 374,538,907.33/22,351.63
  6. Step 6: Final answer
    x = 16,756.67

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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.