Home / 39,750.96-54,857.64-21,846.60

Finding the Fourth Proportional to 39,750.96, 54,857.64 and 21,846.60

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Solution

The fourth proportional to 39,750.96, 54,857.64 and 21,846.60 is: 30,149.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,750.96 : 54,857.64 = 21,846.60 : x
  2. Step 2: Convert to fraction form
    39,750.96/54,857.64 = 21,846.60/x
  3. Step 3: Cross multiply
    39,750.96x = 54,857.64 × 21,846.60
  4. Step 4: Simplify right side
    39,750.96x = 1,198,452,918.02
  5. Step 5: Solve for x
    x = 1,198,452,918.02/39,750.96
  6. Step 6: Final answer
    x = 30,149.03

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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.