Home / 39,162.26-54,043.74-21,257.11

Finding the Fourth Proportional to 39,162.26, 54,043.74 and 21,257.11

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Solution

The fourth proportional to 39,162.26, 54,043.74 and 21,257.11 is: 29,334.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,162.26 : 54,043.74 = 21,257.11 : x
  2. Step 2: Convert to fraction form
    39,162.26/54,043.74 = 21,257.11/x
  3. Step 3: Cross multiply
    39,162.26x = 54,043.74 × 21,257.11
  4. Step 4: Simplify right side
    39,162.26x = 1,148,813,793.55
  5. Step 5: Solve for x
    x = 1,148,813,793.55/39,162.26
  6. Step 6: Final answer
    x = 29,334.71

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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.