Home / 27,821.13-38,394.98-15,245.88

Finding the Fourth Proportional to 27,821.13, 38,394.98 and 15,245.88

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Solution

The fourth proportional to 27,821.13, 38,394.98 and 15,245.88 is: 21,040.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,821.13 : 38,394.98 = 15,245.88 : x
  2. Step 2: Convert to fraction form
    27,821.13/38,394.98 = 15,245.88/x
  3. Step 3: Cross multiply
    27,821.13x = 38,394.98 × 15,245.88
  4. Step 4: Simplify right side
    27,821.13x = 585,365,257.68
  5. Step 5: Solve for x
    x = 585,365,257.68/27,821.13
  6. Step 6: Final answer
    x = 21,040.31

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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.