Home / 39,858.73-55,005.41-21,953.80

Finding the Fourth Proportional to 39,858.73, 55,005.41 and 21,953.80

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Solution

The fourth proportional to 39,858.73, 55,005.41 and 21,953.80 is: 30,296.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,858.73 : 55,005.41 = 21,953.80 : x
  2. Step 2: Convert to fraction form
    39,858.73/55,005.41 = 21,953.80/x
  3. Step 3: Cross multiply
    39,858.73x = 55,005.41 × 21,953.80
  4. Step 4: Simplify right side
    39,858.73x = 1,207,577,549.92
  5. Step 5: Solve for x
    x = 1,207,577,549.92/39,858.73
  6. Step 6: Final answer
    x = 30,296.44

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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.