Home / 39,812.94-54,945.54-21,911.58

Finding the Fourth Proportional to 39,812.94, 54,945.54 and 21,911.58

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Solution

The fourth proportional to 39,812.94, 54,945.54 and 21,911.58 is: 30,240.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,812.94 : 54,945.54 = 21,911.58 : x
  2. Step 2: Convert to fraction form
    39,812.94/54,945.54 = 21,911.58/x
  3. Step 3: Cross multiply
    39,812.94x = 54,945.54 × 21,911.58
  4. Step 4: Simplify right side
    39,812.94x = 1,203,943,595.35
  5. Step 5: Solve for x
    x = 1,203,943,595.35/39,812.94
  6. Step 6: Final answer
    x = 30,240.01

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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.