Home / 39,824.10-54,958.23-21,917.43

Finding the Fourth Proportional to 39,824.10, 54,958.23 and 21,917.43

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Solution

The fourth proportional to 39,824.10, 54,958.23 and 21,917.43 is: 30,246.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,824.10 : 54,958.23 = 21,917.43 : x
  2. Step 2: Convert to fraction form
    39,824.10/54,958.23 = 21,917.43/x
  3. Step 3: Cross multiply
    39,824.10x = 54,958.23 × 21,917.43
  4. Step 4: Simplify right side
    39,824.10x = 1,204,543,158.95
  5. Step 5: Solve for x
    x = 1,204,543,158.95/39,824.10
  6. Step 6: Final answer
    x = 30,246.59

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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.