Home / 39,918.38-55,085.01-22,013.60

Finding the Fourth Proportional to 39,918.38, 55,085.01 and 22,013.60

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Solution

The fourth proportional to 39,918.38, 55,085.01 and 22,013.60 is: 30,377.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,918.38 : 55,085.01 = 22,013.60 : x
  2. Step 2: Convert to fraction form
    39,918.38/55,085.01 = 22,013.60/x
  3. Step 3: Cross multiply
    39,918.38x = 55,085.01 × 22,013.60
  4. Step 4: Simplify right side
    39,918.38x = 1,212,619,376.14
  5. Step 5: Solve for x
    x = 1,212,619,376.14/39,918.38
  6. Step 6: Final answer
    x = 30,377.47

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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.