Home / 20,635.19-28,476.27-11,682.46

Finding the Fourth Proportional to 20,635.19, 28,476.27 and 11,682.46

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Solution

The fourth proportional to 20,635.19, 28,476.27 and 11,682.46 is: 16,121.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,635.19 : 28,476.27 = 11,682.46 : x
  2. Step 2: Convert to fraction form
    20,635.19/28,476.27 = 11,682.46/x
  3. Step 3: Cross multiply
    20,635.19x = 28,476.27 × 11,682.46
  4. Step 4: Simplify right side
    20,635.19x = 332,672,885.22
  5. Step 5: Solve for x
    x = 332,672,885.22/20,635.19
  6. Step 6: Final answer
    x = 16,121.63

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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.