Home / 21,534.44-29,724.30-19,861.38

Finding the Fourth Proportional to 21,534.44, 29,724.30 and 19,861.38

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Solution

The fourth proportional to 21,534.44, 29,724.30 and 19,861.38 is: 27,414.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,534.44 : 29,724.30 = 19,861.38 : x
  2. Step 2: Convert to fraction form
    21,534.44/29,724.30 = 19,861.38/x
  3. Step 3: Cross multiply
    21,534.44x = 29,724.30 × 19,861.38
  4. Step 4: Simplify right side
    21,534.44x = 590,365,617.53
  5. Step 5: Solve for x
    x = 590,365,617.53/21,534.44
  6. Step 6: Final answer
    x = 27,414.96

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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.