Home / 25,453.92-38,171.52-8,809.68

Finding the Fourth Proportional to 25,453.92, 38,171.52 and 8,809.68

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Solution

The fourth proportional to 25,453.92, 38,171.52 and 8,809.68 is: 13,211.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,453.92 : 38,171.52 = 8,809.68 : x
  2. Step 2: Convert to fraction form
    25,453.92/38,171.52 = 8,809.68/x
  3. Step 3: Cross multiply
    25,453.92x = 38,171.52 × 8,809.68
  4. Step 4: Simplify right side
    25,453.92x = 336,278,876.31
  5. Step 5: Solve for x
    x = 336,278,876.31/25,453.92
  6. Step 6: Final answer
    x = 13,211.28

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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.