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Finding the Fourth Proportional to 30,357.78, 41,905.28 and 22,825.99

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Solution

The fourth proportional to 30,357.78, 41,905.28 and 22,825.99 is: 31,508.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,357.78 : 41,905.28 = 22,825.99 : x
  2. Step 2: Convert to fraction form
    30,357.78/41,905.28 = 22,825.99/x
  3. Step 3: Cross multiply
    30,357.78x = 41,905.28 × 22,825.99
  4. Step 4: Simplify right side
    30,357.78x = 956,529,292.70
  5. Step 5: Solve for x
    x = 956,529,292.70/30,357.78
  6. Step 6: Final answer
    x = 31,508.54

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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.