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Finding the Fourth Proportional to 25,880.36, 38,825.48 and 8,345.48

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Solution

The fourth proportional to 25,880.36, 38,825.48 and 8,345.48 is: 12,519.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,880.36 : 38,825.48 = 8,345.48 : x
  2. Step 2: Convert to fraction form
    25,880.36/38,825.48 = 8,345.48/x
  3. Step 3: Cross multiply
    25,880.36x = 38,825.48 × 8,345.48
  4. Step 4: Simplify right side
    25,880.36x = 324,017,266.83
  5. Step 5: Solve for x
    x = 324,017,266.83/25,880.36
  6. Step 6: Final answer
    x = 12,519.81

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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.