Home / 39,091.50-53,945.97-21,186.45

Finding the Fourth Proportional to 39,091.50, 53,945.97 and 21,186.45

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Solution

The fourth proportional to 39,091.50, 53,945.97 and 21,186.45 is: 29,237.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,091.50 : 53,945.97 = 21,186.45 : x
  2. Step 2: Convert to fraction form
    39,091.50/53,945.97 = 21,186.45/x
  3. Step 3: Cross multiply
    39,091.50x = 53,945.97 × 21,186.45
  4. Step 4: Simplify right side
    39,091.50x = 1,142,923,596.11
  5. Step 5: Solve for x
    x = 1,142,923,596.11/39,091.50
  6. Step 6: Final answer
    x = 29,237.14

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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.