Home / 39,609.44-54,660.72-21,704.12

Finding the Fourth Proportional to 39,609.44, 54,660.72 and 21,704.12

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Solution

The fourth proportional to 39,609.44, 54,660.72 and 21,704.12 is: 29,951.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,609.44 : 54,660.72 = 21,704.12 : x
  2. Step 2: Convert to fraction form
    39,609.44/54,660.72 = 21,704.12/x
  3. Step 3: Cross multiply
    39,609.44x = 54,660.72 × 21,704.12
  4. Step 4: Simplify right side
    39,609.44x = 1,186,362,826.17
  5. Step 5: Solve for x
    x = 1,186,362,826.17/39,609.44
  6. Step 6: Final answer
    x = 29,951.52

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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.