Home / 27,805.14-38,388.78-18,261.96

Finding the Fourth Proportional to 27,805.14, 38,388.78 and 18,261.96

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Solution

The fourth proportional to 27,805.14, 38,388.78 and 18,261.96 is: 25,213.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,805.14 : 38,388.78 = 18,261.96 : x
  2. Step 2: Convert to fraction form
    27,805.14/38,388.78 = 18,261.96/x
  3. Step 3: Cross multiply
    27,805.14x = 38,388.78 × 18,261.96
  4. Step 4: Simplify right side
    27,805.14x = 701,054,364.81
  5. Step 5: Solve for x
    x = 701,054,364.81/27,805.14
  6. Step 6: Final answer
    x = 25,213.12

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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.