Home / 33,123.21-45,708.48-18,782.84

Finding the Fourth Proportional to 33,123.21, 45,708.48 and 18,782.84

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Solution

The fourth proportional to 33,123.21, 45,708.48 and 18,782.84 is: 25,919.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,123.21 : 45,708.48 = 18,782.84 : x
  2. Step 2: Convert to fraction form
    33,123.21/45,708.48 = 18,782.84/x
  3. Step 3: Cross multiply
    33,123.21x = 45,708.48 × 18,782.84
  4. Step 4: Simplify right side
    33,123.21x = 858,534,837.94
  5. Step 5: Solve for x
    x = 858,534,837.94/33,123.21
  6. Step 6: Final answer
    x = 25,919.43

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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.