Home / 18,181.06-25,092.42-15,192.16

Finding the Fourth Proportional to 18,181.06, 25,092.42 and 15,192.16

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Solution

The fourth proportional to 18,181.06, 25,092.42 and 15,192.16 is: 20,967.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,181.06 : 25,092.42 = 15,192.16 : x
  2. Step 2: Convert to fraction form
    18,181.06/25,092.42 = 15,192.16/x
  3. Step 3: Cross multiply
    18,181.06x = 25,092.42 × 15,192.16
  4. Step 4: Simplify right side
    18,181.06x = 381,208,059.43
  5. Step 5: Solve for x
    x = 381,208,059.43/18,181.06
  6. Step 6: Final answer
    x = 20,967.32

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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.