Home / 21,096.32-29,112.89-11,664.81

Finding the Fourth Proportional to 21,096.32, 29,112.89 and 11,664.81

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Solution

The fourth proportional to 21,096.32, 29,112.89 and 11,664.81 is: 16,097.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,096.32 : 29,112.89 = 11,664.81 : x
  2. Step 2: Convert to fraction form
    21,096.32/29,112.89 = 11,664.81/x
  3. Step 3: Cross multiply
    21,096.32x = 29,112.89 × 11,664.81
  4. Step 4: Simplify right side
    21,096.32x = 339,596,272.08
  5. Step 5: Solve for x
    x = 339,596,272.08/21,096.32
  6. Step 6: Final answer
    x = 16,097.42

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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.