Home / 39,771.48-54,884.68-21,866.79

Finding the Fourth Proportional to 39,771.48, 54,884.68 and 21,866.79

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Solution

The fourth proportional to 39,771.48, 54,884.68 and 21,866.79 is: 30,176.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,771.48 : 54,884.68 = 21,866.79 : x
  2. Step 2: Convert to fraction form
    39,771.48/54,884.68 = 21,866.79/x
  3. Step 3: Cross multiply
    39,771.48x = 54,884.68 × 21,866.79
  4. Step 4: Simplify right side
    39,771.48x = 1,200,151,771.78
  5. Step 5: Solve for x
    x = 1,200,151,771.78/39,771.48
  6. Step 6: Final answer
    x = 30,176.19

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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.