Home / 20,181.24-27,838.26-13,112.34

Finding the Fourth Proportional to 20,181.24, 27,838.26 and 13,112.34

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Solution

The fourth proportional to 20,181.24, 27,838.26 and 13,112.34 is: 18,087.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.24 : 27,838.26 = 13,112.34 : x
  2. Step 2: Convert to fraction form
    20,181.24/27,838.26 = 13,112.34/x
  3. Step 3: Cross multiply
    20,181.24x = 27,838.26 × 13,112.34
  4. Step 4: Simplify right side
    20,181.24x = 365,024,730.13
  5. Step 5: Solve for x
    x = 365,024,730.13/20,181.24
  6. Step 6: Final answer
    x = 18,087.33

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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.