Home / 29,815.20-41,100.75-21,844.80

Finding the Fourth Proportional to 29,815.20, 41,100.75 and 21,844.80

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Solution

The fourth proportional to 29,815.20, 41,100.75 and 21,844.80 is: 30,113.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,815.20 : 41,100.75 = 21,844.80 : x
  2. Step 2: Convert to fraction form
    29,815.20/41,100.75 = 21,844.80/x
  3. Step 3: Cross multiply
    29,815.20x = 41,100.75 × 21,844.80
  4. Step 4: Simplify right side
    29,815.20x = 897,837,663.60
  5. Step 5: Solve for x
    x = 897,837,663.60/29,815.20
  6. Step 6: Final answer
    x = 30,113.42

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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.