Home / 39,918.69-55,087.08-22,015.32

Finding the Fourth Proportional to 39,918.69, 55,087.08 and 22,015.32

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Solution

The fourth proportional to 39,918.69, 55,087.08 and 22,015.32 is: 30,380.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,918.69 : 55,087.08 = 22,015.32 : x
  2. Step 2: Convert to fraction form
    39,918.69/55,087.08 = 22,015.32/x
  3. Step 3: Cross multiply
    39,918.69x = 55,087.08 × 22,015.32
  4. Step 4: Simplify right side
    39,918.69x = 1,212,759,694.07
  5. Step 5: Solve for x
    x = 1,212,759,694.07/39,918.69
  6. Step 6: Final answer
    x = 30,380.75

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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.