Home / 26,905.33-40,357.56-12,103.78

Finding the Fourth Proportional to 26,905.33, 40,357.56 and 12,103.78

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Solution

The fourth proportional to 26,905.33, 40,357.56 and 12,103.78 is: 18,155.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,905.33 : 40,357.56 = 12,103.78 : x
  2. Step 2: Convert to fraction form
    26,905.33/40,357.56 = 12,103.78/x
  3. Step 3: Cross multiply
    26,905.33x = 40,357.56 × 12,103.78
  4. Step 4: Simplify right side
    26,905.33x = 488,479,027.58
  5. Step 5: Solve for x
    x = 488,479,027.58/26,905.33
  6. Step 6: Final answer
    x = 18,155.47

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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.