Home / 39,918.86-55,087.26-22,015.52

Finding the Fourth Proportional to 39,918.86, 55,087.26 and 22,015.52

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Solution

The fourth proportional to 39,918.86, 55,087.26 and 22,015.52 is: 30,380.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,918.86 : 55,087.26 = 22,015.52 : x
  2. Step 2: Convert to fraction form
    39,918.86/55,087.26 = 22,015.52/x
  3. Step 3: Cross multiply
    39,918.86x = 55,087.26 × 22,015.52
  4. Step 4: Simplify right side
    39,918.86x = 1,212,774,674.28
  5. Step 5: Solve for x
    x = 1,212,774,674.28/39,918.86
  6. Step 6: Final answer
    x = 30,380.99

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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.