Home / 39,100.46-53,958.72-21,195.44

Finding the Fourth Proportional to 39,100.46, 53,958.72 and 21,195.44

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Solution

The fourth proportional to 39,100.46, 53,958.72 and 21,195.44 is: 29,249.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,100.46 : 53,958.72 = 21,195.44 : x
  2. Step 2: Convert to fraction form
    39,100.46/53,958.72 = 21,195.44/x
  3. Step 3: Cross multiply
    39,100.46x = 53,958.72 × 21,195.44
  4. Step 4: Simplify right side
    39,100.46x = 1,143,678,812.24
  5. Step 5: Solve for x
    x = 1,143,678,812.24/39,100.46
  6. Step 6: Final answer
    x = 29,249.75

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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.