Home / 19,538.64-29,324.30-8,453.76

Finding the Fourth Proportional to 19,538.64, 29,324.30 and 8,453.76

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Solution

The fourth proportional to 19,538.64, 29,324.30 and 8,453.76 is: 12,687.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,538.64 : 29,324.30 = 8,453.76 : x
  2. Step 2: Convert to fraction form
    19,538.64/29,324.30 = 8,453.76/x
  3. Step 3: Cross multiply
    19,538.64x = 29,324.30 × 8,453.76
  4. Step 4: Simplify right side
    19,538.64x = 247,900,594.37
  5. Step 5: Solve for x
    x = 247,900,594.37/19,538.64
  6. Step 6: Final answer
    x = 12,687.71

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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.