Home / 40,119.96-55,349.34-23,115.09

Finding the Fourth Proportional to 40,119.96, 55,349.34 and 23,115.09

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Solution

The fourth proportional to 40,119.96, 55,349.34 and 23,115.09 is: 31,889.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,119.96 : 55,349.34 = 23,115.09 : x
  2. Step 2: Convert to fraction form
    40,119.96/55,349.34 = 23,115.09/x
  3. Step 3: Cross multiply
    40,119.96x = 55,349.34 × 23,115.09
  4. Step 4: Simplify right side
    40,119.96x = 1,279,404,975.54
  5. Step 5: Solve for x
    x = 1,279,404,975.54/40,119.96
  6. Step 6: Final answer
    x = 31,889.49

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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.