Home / 39,834.11-54,971.55-21,930.33

Finding the Fourth Proportional to 39,834.11, 54,971.55 and 21,930.33

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Solution

The fourth proportional to 39,834.11, 54,971.55 and 21,930.33 is: 30,264.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,834.11 : 54,971.55 = 21,930.33 : x
  2. Step 2: Convert to fraction form
    39,834.11/54,971.55 = 21,930.33/x
  3. Step 3: Cross multiply
    39,834.11x = 54,971.55 × 21,930.33
  4. Step 4: Simplify right side
    39,834.11x = 1,205,544,232.11
  5. Step 5: Solve for x
    x = 1,205,544,232.11/39,834.11
  6. Step 6: Final answer
    x = 30,264.12

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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.