Home / 30,202.54-41,665.04-21,255.01

Finding the Fourth Proportional to 30,202.54, 41,665.04 and 21,255.01

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Solution

The fourth proportional to 30,202.54, 41,665.04 and 21,255.01 is: 29,321.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,202.54 : 41,665.04 = 21,255.01 : x
  2. Step 2: Convert to fraction form
    30,202.54/41,665.04 = 21,255.01/x
  3. Step 3: Cross multiply
    30,202.54x = 41,665.04 × 21,255.01
  4. Step 4: Simplify right side
    30,202.54x = 885,590,841.85
  5. Step 5: Solve for x
    x = 885,590,841.85/30,202.54
  6. Step 6: Final answer
    x = 29,321.73

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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.