Home / 39,672.63-54,751.78-21,771.13

Finding the Fourth Proportional to 39,672.63, 54,751.78 and 21,771.13

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Solution

The fourth proportional to 39,672.63, 54,751.78 and 21,771.13 is: 30,046.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,672.63 : 54,751.78 = 21,771.13 : x
  2. Step 2: Convert to fraction form
    39,672.63/54,751.78 = 21,771.13/x
  3. Step 3: Cross multiply
    39,672.63x = 54,751.78 × 21,771.13
  4. Step 4: Simplify right side
    39,672.63x = 1,192,007,846.35
  5. Step 5: Solve for x
    x = 1,192,007,846.35/39,672.63
  6. Step 6: Final answer
    x = 30,046.10

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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.