Home / 21,096.21-29,112.80-11,536.14

Finding the Fourth Proportional to 21,096.21, 29,112.80 and 11,536.14

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Solution

The fourth proportional to 21,096.21, 29,112.80 and 11,536.14 is: 15,919.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,096.21 : 29,112.80 = 11,536.14 : x
  2. Step 2: Convert to fraction form
    21,096.21/29,112.80 = 11,536.14/x
  3. Step 3: Cross multiply
    21,096.21x = 29,112.80 × 11,536.14
  4. Step 4: Simplify right side
    21,096.21x = 335,849,336.59
  5. Step 5: Solve for x
    x = 335,849,336.59/21,096.21
  6. Step 6: Final answer
    x = 15,919.89

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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.