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Finding the Fourth Proportional to 25,995.70, 35,883.78 and 20,241.78

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Solution

The fourth proportional to 25,995.70, 35,883.78 and 20,241.78 is: 27,941.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,995.70 : 35,883.78 = 20,241.78 : x
  2. Step 2: Convert to fraction form
    25,995.70/35,883.78 = 20,241.78/x
  3. Step 3: Cross multiply
    25,995.70x = 35,883.78 × 20,241.78
  4. Step 4: Simplify right side
    25,995.70x = 726,351,580.33
  5. Step 5: Solve for x
    x = 726,351,580.33/25,995.70
  6. Step 6: Final answer
    x = 27,941.22

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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.