Home / 30,120.07-41,566.77-18,181.07

Finding the Fourth Proportional to 30,120.07, 41,566.77 and 18,181.07

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Solution

The fourth proportional to 30,120.07, 41,566.77 and 18,181.07 is: 25,090.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,120.07 : 41,566.77 = 18,181.07 : x
  2. Step 2: Convert to fraction form
    30,120.07/41,566.77 = 18,181.07/x
  3. Step 3: Cross multiply
    30,120.07x = 41,566.77 × 18,181.07
  4. Step 4: Simplify right side
    30,120.07x = 755,728,355.04
  5. Step 5: Solve for x
    x = 755,728,355.04/30,120.07
  6. Step 6: Final answer
    x = 25,090.52

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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.