Home / 39,747.97-54,851.09-21,842.99

Finding the Fourth Proportional to 39,747.97, 54,851.09 and 21,842.99

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Solution

The fourth proportional to 39,747.97, 54,851.09 and 21,842.99 is: 30,142.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,747.97 : 54,851.09 = 21,842.99 : x
  2. Step 2: Convert to fraction form
    39,747.97/54,851.09 = 21,842.99/x
  3. Step 3: Cross multiply
    39,747.97x = 54,851.09 × 21,842.99
  4. Step 4: Simplify right side
    39,747.97x = 1,198,111,810.36
  5. Step 5: Solve for x
    x = 1,198,111,810.36/39,747.97
  6. Step 6: Final answer
    x = 30,142.72

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1.5x scale

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.