Home / 39,618.21-54,674.70-21,713.85

Finding the Fourth Proportional to 39,618.21, 54,674.70 and 21,713.85

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Solution

The fourth proportional to 39,618.21, 54,674.70 and 21,713.85 is: 29,965.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,618.21 : 54,674.70 = 21,713.85 : x
  2. Step 2: Convert to fraction form
    39,618.21/54,674.70 = 21,713.85/x
  3. Step 3: Cross multiply
    39,618.21x = 54,674.70 × 21,713.85
  4. Step 4: Simplify right side
    39,618.21x = 1,187,198,234.60
  5. Step 5: Solve for x
    x = 1,187,198,234.60/39,618.21
  6. Step 6: Final answer
    x = 29,965.97

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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.