Home / 25,640.64-35,379.41-19,495.86

Finding the Fourth Proportional to 25,640.64, 35,379.41 and 19,495.86

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Solution

The fourth proportional to 25,640.64, 35,379.41 and 19,495.86 is: 26,900.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,640.64 : 35,379.41 = 19,495.86 : x
  2. Step 2: Convert to fraction form
    25,640.64/35,379.41 = 19,495.86/x
  3. Step 3: Cross multiply
    25,640.64x = 35,379.41 × 19,495.86
  4. Step 4: Simplify right side
    25,640.64x = 689,751,926.76
  5. Step 5: Solve for x
    x = 689,751,926.76/25,640.64
  6. Step 6: Final answer
    x = 26,900.73

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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.