Home / 39,798.49-54,919.86-21,893.05

Finding the Fourth Proportional to 39,798.49, 54,919.86 and 21,893.05

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Solution

The fourth proportional to 39,798.49, 54,919.86 and 21,893.05 is: 30,211.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,798.49 : 54,919.86 = 21,893.05 : x
  2. Step 2: Convert to fraction form
    39,798.49/54,919.86 = 21,893.05/x
  3. Step 3: Cross multiply
    39,798.49x = 54,919.86 × 21,893.05
  4. Step 4: Simplify right side
    39,798.49x = 1,202,363,240.97
  5. Step 5: Solve for x
    x = 1,202,363,240.97/39,798.49
  6. Step 6: Final answer
    x = 30,211.28

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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.