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Finding the Fourth Proportional to 25,296.67, 34,911.77 and 18,912.20

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Solution

The fourth proportional to 25,296.67, 34,911.77 and 18,912.20 is: 26,100.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,296.67 : 34,911.77 = 18,912.20 : x
  2. Step 2: Convert to fraction form
    25,296.67/34,911.77 = 18,912.20/x
  3. Step 3: Cross multiply
    25,296.67x = 34,911.77 × 18,912.20
  4. Step 4: Simplify right side
    25,296.67x = 660,258,282.03
  5. Step 5: Solve for x
    x = 660,258,282.03/25,296.67
  6. Step 6: Final answer
    x = 26,100.61

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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.