Home / 39,453.21-54,446.45-21,548.03

Finding the Fourth Proportional to 39,453.21, 54,446.45 and 21,548.03

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Solution

The fourth proportional to 39,453.21, 54,446.45 and 21,548.03 is: 29,736.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,453.21 : 54,446.45 = 21,548.03 : x
  2. Step 2: Convert to fraction form
    39,453.21/54,446.45 = 21,548.03/x
  3. Step 3: Cross multiply
    39,453.21x = 54,446.45 × 21,548.03
  4. Step 4: Simplify right side
    39,453.21x = 1,173,213,358.02
  5. Step 5: Solve for x
    x = 1,173,213,358.02/39,453.21
  6. Step 6: Final answer
    x = 29,736.83

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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.