Home / 39,669.65-54,744.68-21,764.33

Finding the Fourth Proportional to 39,669.65, 54,744.68 and 21,764.33

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Solution

The fourth proportional to 39,669.65, 54,744.68 and 21,764.33 is: 30,035.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,669.65 : 54,744.68 = 21,764.33 : x
  2. Step 2: Convert to fraction form
    39,669.65/54,744.68 = 21,764.33/x
  3. Step 3: Cross multiply
    39,669.65x = 54,744.68 × 21,764.33
  4. Step 4: Simplify right side
    39,669.65x = 1,191,481,172.44
  5. Step 5: Solve for x
    x = 1,191,481,172.44/39,669.65
  6. Step 6: Final answer
    x = 30,035.08

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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.