Home / 31,396.52-43,324.80-18,818.84

Finding the Fourth Proportional to 31,396.52, 43,324.80 and 18,818.84

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Solution

The fourth proportional to 31,396.52, 43,324.80 and 18,818.84 is: 25,968.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,396.52 : 43,324.80 = 18,818.84 : x
  2. Step 2: Convert to fraction form
    31,396.52/43,324.80 = 18,818.84/x
  3. Step 3: Cross multiply
    31,396.52x = 43,324.80 × 18,818.84
  4. Step 4: Simplify right side
    31,396.52x = 815,322,479.23
  5. Step 5: Solve for x
    x = 815,322,479.23/31,396.52
  6. Step 6: Final answer
    x = 25,968.56

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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.