Home / 39,945.21-55,124.58-22,040.23

Finding the Fourth Proportional to 39,945.21, 55,124.58 and 22,040.23

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Solution

The fourth proportional to 39,945.21, 55,124.58 and 22,040.23 is: 30,415.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,945.21 : 55,124.58 = 22,040.23 : x
  2. Step 2: Convert to fraction form
    39,945.21/55,124.58 = 22,040.23/x
  3. Step 3: Cross multiply
    39,945.21x = 55,124.58 × 22,040.23
  4. Step 4: Simplify right side
    39,945.21x = 1,214,958,146.23
  5. Step 5: Solve for x
    x = 1,214,958,146.23/39,945.21
  6. Step 6: Final answer
    x = 30,415.62

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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.