Home / 19,670.85-27,144.72-11,173.41

Finding the Fourth Proportional to 19,670.85, 27,144.72 and 11,173.41

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Solution

The fourth proportional to 19,670.85, 27,144.72 and 11,173.41 is: 15,418.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,670.85 : 27,144.72 = 11,173.41 : x
  2. Step 2: Convert to fraction form
    19,670.85/27,144.72 = 11,173.41/x
  3. Step 3: Cross multiply
    19,670.85x = 27,144.72 × 11,173.41
  4. Step 4: Simplify right side
    19,670.85x = 303,299,085.90
  5. Step 5: Solve for x
    x = 303,299,085.90/19,670.85
  6. Step 6: Final answer
    x = 15,418.71

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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.