Home / 39,668.84-54,744.18-21,764.96

Finding the Fourth Proportional to 39,668.84, 54,744.18 and 21,764.96

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Solution

The fourth proportional to 39,668.84, 54,744.18 and 21,764.96 is: 30,036.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,668.84 : 54,744.18 = 21,764.96 : x
  2. Step 2: Convert to fraction form
    39,668.84/54,744.18 = 21,764.96/x
  3. Step 3: Cross multiply
    39,668.84x = 54,744.18 × 21,764.96
  4. Step 4: Simplify right side
    39,668.84x = 1,191,504,887.93
  5. Step 5: Solve for x
    x = 1,191,504,887.93/39,668.84
  6. Step 6: Final answer
    x = 30,036.29

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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.