Home / 39,945.82-55,127.01-22,040.86

Finding the Fourth Proportional to 39,945.82, 55,127.01 and 22,040.86

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Solution

The fourth proportional to 39,945.82, 55,127.01 and 22,040.86 is: 30,417.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,945.82 : 55,127.01 = 22,040.86 : x
  2. Step 2: Convert to fraction form
    39,945.82/55,127.01 = 22,040.86/x
  3. Step 3: Cross multiply
    39,945.82x = 55,127.01 × 22,040.86
  4. Step 4: Simplify right side
    39,945.82x = 1,215,046,709.63
  5. Step 5: Solve for x
    x = 1,215,046,709.63/39,945.82
  6. Step 6: Final answer
    x = 30,417.37

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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.