Home / 39,893.68-55,053.08-21,744.36

Finding the Fourth Proportional to 39,893.68, 55,053.08 and 21,744.36

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Solution

The fourth proportional to 39,893.68, 55,053.08 and 21,744.36 is: 30,007.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,893.68 : 55,053.08 = 21,744.36 : x
  2. Step 2: Convert to fraction form
    39,893.68/55,053.08 = 21,744.36/x
  3. Step 3: Cross multiply
    39,893.68x = 55,053.08 × 21,744.36
  4. Step 4: Simplify right side
    39,893.68x = 1,197,093,990.63
  5. Step 5: Solve for x
    x = 1,197,093,990.63/39,893.68
  6. Step 6: Final answer
    x = 30,007.11

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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.