Home / 39,863.47-55,014.09-21,958.48

Finding the Fourth Proportional to 39,863.47, 55,014.09 and 21,958.48

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Solution

The fourth proportional to 39,863.47, 55,014.09 and 21,958.48 is: 30,304.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,863.47 : 55,014.09 = 21,958.48 : x
  2. Step 2: Convert to fraction form
    39,863.47/55,014.09 = 21,958.48/x
  3. Step 3: Cross multiply
    39,863.47x = 55,014.09 × 21,958.48
  4. Step 4: Simplify right side
    39,863.47x = 1,208,025,794.98
  5. Step 5: Solve for x
    x = 1,208,025,794.98/39,863.47
  6. Step 6: Final answer
    x = 30,304.08

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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.