Home / 39,863.25-55,008.81-21,957.26

Finding the Fourth Proportional to 39,863.25, 55,008.81 and 21,957.26

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Solution

The fourth proportional to 39,863.25, 55,008.81 and 21,957.26 is: 30,299.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,863.25 : 55,008.81 = 21,957.26 : x
  2. Step 2: Convert to fraction form
    39,863.25/55,008.81 = 21,957.26/x
  3. Step 3: Cross multiply
    39,863.25x = 55,008.81 × 21,957.26
  4. Step 4: Simplify right side
    39,863.25x = 1,207,842,468.42
  5. Step 5: Solve for x
    x = 1,207,842,468.42/39,863.25
  6. Step 6: Final answer
    x = 30,299.65

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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.