Home / 31,824.36-43,912.73-18,393.01

Finding the Fourth Proportional to 31,824.36, 43,912.73 and 18,393.01

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Solution

The fourth proportional to 31,824.36, 43,912.73 and 18,393.01 is: 25,379.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,824.36 : 43,912.73 = 18,393.01 : x
  2. Step 2: Convert to fraction form
    31,824.36/43,912.73 = 18,393.01/x
  3. Step 3: Cross multiply
    31,824.36x = 43,912.73 × 18,393.01
  4. Step 4: Simplify right side
    31,824.36x = 807,687,218.22
  5. Step 5: Solve for x
    x = 807,687,218.22/31,824.36
  6. Step 6: Final answer
    x = 25,379.53

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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.