Home / 21,751.11-32,613.57-11,876.67

Finding the Fourth Proportional to 21,751.11, 32,613.57 and 11,876.67

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Solution

The fourth proportional to 21,751.11, 32,613.57 and 11,876.67 is: 17,807.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,751.11 : 32,613.57 = 11,876.67 : x
  2. Step 2: Convert to fraction form
    21,751.11/32,613.57 = 11,876.67/x
  3. Step 3: Cross multiply
    21,751.11x = 32,613.57 × 11,876.67
  4. Step 4: Simplify right side
    21,751.11x = 387,340,608.41
  5. Step 5: Solve for x
    x = 387,340,608.41/21,751.11
  6. Step 6: Final answer
    x = 17,807.85

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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.