Home / 29,873.80-41,235.78-21,838.60

Finding the Fourth Proportional to 29,873.80, 41,235.78 and 21,838.60

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Solution

The fourth proportional to 29,873.80, 41,235.78 and 21,838.60 is: 30,144.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,873.80 : 41,235.78 = 21,838.60 : x
  2. Step 2: Convert to fraction form
    29,873.80/41,235.78 = 21,838.60/x
  3. Step 3: Cross multiply
    29,873.80x = 41,235.78 × 21,838.60
  4. Step 4: Simplify right side
    29,873.80x = 900,531,705.11
  5. Step 5: Solve for x
    x = 900,531,705.11/29,873.80
  6. Step 6: Final answer
    x = 30,144.53

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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.