Home / 27,313.25-40,985.78-11,517.30

Finding the Fourth Proportional to 27,313.25, 40,985.78 and 11,517.30

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Solution

The fourth proportional to 27,313.25, 40,985.78 and 11,517.30 is: 17,282.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,313.25 : 40,985.78 = 11,517.30 : x
  2. Step 2: Convert to fraction form
    27,313.25/40,985.78 = 11,517.30/x
  3. Step 3: Cross multiply
    27,313.25x = 40,985.78 × 11,517.30
  4. Step 4: Simplify right side
    27,313.25x = 472,045,466.41
  5. Step 5: Solve for x
    x = 472,045,466.41/27,313.25
  6. Step 6: Final answer
    x = 17,282.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.