Home / 39,668.13-54,745.54-21,766.59

Finding the Fourth Proportional to 39,668.13, 54,745.54 and 21,766.59

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Solution

The fourth proportional to 39,668.13, 54,745.54 and 21,766.59 is: 30,039.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,668.13 : 54,745.54 = 21,766.59 : x
  2. Step 2: Convert to fraction form
    39,668.13/54,745.54 = 21,766.59/x
  3. Step 3: Cross multiply
    39,668.13x = 54,745.54 × 21,766.59
  4. Step 4: Simplify right side
    39,668.13x = 1,191,623,669.09
  5. Step 5: Solve for x
    x = 1,191,623,669.09/39,668.13
  6. Step 6: Final answer
    x = 30,039.82

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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.