Home / 39,481.44-54,483.12-21,576.39

Finding the Fourth Proportional to 39,481.44, 54,483.12 and 21,576.39

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Solution

The fourth proportional to 39,481.44, 54,483.12 and 21,576.39 is: 29,774.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,481.44 : 54,483.12 = 21,576.39 : x
  2. Step 2: Convert to fraction form
    39,481.44/54,483.12 = 21,576.39/x
  3. Step 3: Cross multiply
    39,481.44x = 54,483.12 × 21,576.39
  4. Step 4: Simplify right side
    39,481.44x = 1,175,549,045.54
  5. Step 5: Solve for x
    x = 1,175,549,045.54/39,481.44
  6. Step 6: Final answer
    x = 29,774.73

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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.