Home / 39,205.20-54,103.17-22,438.20

Finding the Fourth Proportional to 39,205.20, 54,103.17 and 22,438.20

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Solution

The fourth proportional to 39,205.20, 54,103.17 and 22,438.20 is: 30,964.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,205.20 : 54,103.17 = 22,438.20 : x
  2. Step 2: Convert to fraction form
    39,205.20/54,103.17 = 22,438.20/x
  3. Step 3: Cross multiply
    39,205.20x = 54,103.17 × 22,438.20
  4. Step 4: Simplify right side
    39,205.20x = 1,213,977,749.09
  5. Step 5: Solve for x
    x = 1,213,977,749.09/39,205.20
  6. Step 6: Final answer
    x = 30,964.71

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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.