Home / 39,803.26-54,927.69-21,897.80

Finding the Fourth Proportional to 39,803.26, 54,927.69 and 21,897.80

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Solution

The fourth proportional to 39,803.26, 54,927.69 and 21,897.80 is: 30,218.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,803.26 : 54,927.69 = 21,897.80 : x
  2. Step 2: Convert to fraction form
    39,803.26/54,927.69 = 21,897.80/x
  3. Step 3: Cross multiply
    39,803.26x = 54,927.69 × 21,897.80
  4. Step 4: Simplify right side
    39,803.26x = 1,202,795,570.08
  5. Step 5: Solve for x
    x = 1,202,795,570.08/39,803.26
  6. Step 6: Final answer
    x = 30,218.52

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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.