Home / 39,771.19-54,884.14-21,867.22

Finding the Fourth Proportional to 39,771.19, 54,884.14 and 21,867.22

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Solution

The fourth proportional to 39,771.19, 54,884.14 and 21,867.22 is: 30,176.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,771.19 : 54,884.14 = 21,867.22 : x
  2. Step 2: Convert to fraction form
    39,771.19/54,884.14 = 21,867.22/x
  3. Step 3: Cross multiply
    39,771.19x = 54,884.14 × 21,867.22
  4. Step 4: Simplify right side
    39,771.19x = 1,200,163,563.89
  5. Step 5: Solve for x
    x = 1,200,163,563.89/39,771.19
  6. Step 6: Final answer
    x = 30,176.71

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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.