Home / 31,719.25-43,771.44-18,291.07

Finding the Fourth Proportional to 31,719.25, 43,771.44 and 18,291.07

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Solution

The fourth proportional to 31,719.25, 43,771.44 and 18,291.07 is: 25,241.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,719.25 : 43,771.44 = 18,291.07 : x
  2. Step 2: Convert to fraction form
    31,719.25/43,771.44 = 18,291.07/x
  3. Step 3: Cross multiply
    31,719.25x = 43,771.44 × 18,291.07
  4. Step 4: Simplify right side
    31,719.25x = 800,626,247.25
  5. Step 5: Solve for x
    x = 800,626,247.25/31,719.25
  6. Step 6: Final answer
    x = 25,241.02

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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.