Home / 21,323.52-29,427.62-11,892.04

Finding the Fourth Proportional to 21,323.52, 29,427.62 and 11,892.04

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Solution

The fourth proportional to 21,323.52, 29,427.62 and 11,892.04 is: 16,411.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,323.52 : 29,427.62 = 11,892.04 : x
  2. Step 2: Convert to fraction form
    21,323.52/29,427.62 = 11,892.04/x
  3. Step 3: Cross multiply
    21,323.52x = 29,427.62 × 11,892.04
  4. Step 4: Simplify right side
    21,323.52x = 349,954,434.14
  5. Step 5: Solve for x
    x = 349,954,434.14/21,323.52
  6. Step 6: Final answer
    x = 16,411.66

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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.