Home / 39,749.67-54,855.63-21,844.89

Finding the Fourth Proportional to 39,749.67, 54,855.63 and 21,844.89

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Solution

The fourth proportional to 39,749.67, 54,855.63 and 21,844.89 is: 30,146.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,749.67 : 54,855.63 = 21,844.89 : x
  2. Step 2: Convert to fraction form
    39,749.67/54,855.63 = 21,844.89/x
  3. Step 3: Cross multiply
    39,749.67x = 54,855.63 × 21,844.89
  4. Step 4: Simplify right side
    39,749.67x = 1,198,315,203.23
  5. Step 5: Solve for x
    x = 1,198,315,203.23/39,749.67
  6. Step 6: Final answer
    x = 30,146.54

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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.