Home / 53,683.38-80,556.75-20,431.44

Finding the Fourth Proportional to 53,683.38, 80,556.75 and 20,431.44

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Solution

The fourth proportional to 53,683.38, 80,556.75 and 20,431.44 is: 30,659.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,683.38 : 80,556.75 = 20,431.44 : x
  2. Step 2: Convert to fraction form
    53,683.38/80,556.75 = 20,431.44/x
  3. Step 3: Cross multiply
    53,683.38x = 80,556.75 × 20,431.44
  4. Step 4: Simplify right side
    53,683.38x = 1,645,890,404.22
  5. Step 5: Solve for x
    x = 1,645,890,404.22/53,683.38
  6. Step 6: Final answer
    x = 30,659.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.