Home / 21,096.45-29,116.26-13,141.24

Finding the Fourth Proportional to 21,096.45, 29,116.26 and 13,141.24

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Solution

The fourth proportional to 21,096.45, 29,116.26 and 13,141.24 is: 18,136.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,096.45 : 29,116.26 = 13,141.24 : x
  2. Step 2: Convert to fraction form
    21,096.45/29,116.26 = 13,141.24/x
  3. Step 3: Cross multiply
    21,096.45x = 29,116.26 × 13,141.24
  4. Step 4: Simplify right side
    21,096.45x = 382,623,687.77
  5. Step 5: Solve for x
    x = 382,623,687.77/21,096.45
  6. Step 6: Final answer
    x = 18,136.88

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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.