Home / 39,917.69-55,086.07-22,013.45

Finding the Fourth Proportional to 39,917.69, 55,086.07 and 22,013.45

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Solution

The fourth proportional to 39,917.69, 55,086.07 and 22,013.45 is: 30,378.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,917.69 : 55,086.07 = 22,013.45 : x
  2. Step 2: Convert to fraction form
    39,917.69/55,086.07 = 22,013.45/x
  3. Step 3: Cross multiply
    39,917.69x = 55,086.07 × 22,013.45
  4. Step 4: Simplify right side
    39,917.69x = 1,212,634,447.64
  5. Step 5: Solve for x
    x = 1,212,634,447.64/39,917.69
  6. Step 6: Final answer
    x = 30,378.37

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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.