Home / 39,628.44-54,687.25-21,723.06

Finding the Fourth Proportional to 39,628.44, 54,687.25 and 21,723.06

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Solution

The fourth proportional to 39,628.44, 54,687.25 and 21,723.06 is: 29,977.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,628.44 : 54,687.25 = 21,723.06 : x
  2. Step 2: Convert to fraction form
    39,628.44/54,687.25 = 21,723.06/x
  3. Step 3: Cross multiply
    39,628.44x = 54,687.25 × 21,723.06
  4. Step 4: Simplify right side
    39,628.44x = 1,187,974,491.41
  5. Step 5: Solve for x
    x = 1,187,974,491.41/39,628.44
  6. Step 6: Final answer
    x = 29,977.83

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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.