Home / 39,091.04-53,945.42-21,185.85

Finding the Fourth Proportional to 39,091.04, 53,945.42 and 21,185.85

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Solution

The fourth proportional to 39,091.04, 53,945.42 and 21,185.85 is: 29,236.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,091.04 : 53,945.42 = 21,185.85 : x
  2. Step 2: Convert to fraction form
    39,091.04/53,945.42 = 21,185.85/x
  3. Step 3: Cross multiply
    39,091.04x = 53,945.42 × 21,185.85
  4. Step 4: Simplify right side
    39,091.04x = 1,142,879,470.38
  5. Step 5: Solve for x
    x = 1,142,879,470.38/39,091.04
  6. Step 6: Final answer
    x = 29,236.36

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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.