Home / 39,857.06-55,005.23-21,952.06

Finding the Fourth Proportional to 39,857.06, 55,005.23 and 21,952.06

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Solution

The fourth proportional to 39,857.06, 55,005.23 and 21,952.06 is: 30,295.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,857.06 : 55,005.23 = 21,952.06 : x
  2. Step 2: Convert to fraction form
    39,857.06/55,005.23 = 21,952.06/x
  3. Step 3: Cross multiply
    39,857.06x = 55,005.23 × 21,952.06
  4. Step 4: Simplify right side
    39,857.06x = 1,207,478,109.27
  5. Step 5: Solve for x
    x = 1,207,478,109.27/39,857.06
  6. Step 6: Final answer
    x = 30,295.21

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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.