Home / 21,664.68-29,894.01-13,162.32

Finding the Fourth Proportional to 21,664.68, 29,894.01 and 13,162.32

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Solution

The fourth proportional to 21,664.68, 29,894.01 and 13,162.32 is: 18,162.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,664.68 : 29,894.01 = 13,162.32 : x
  2. Step 2: Convert to fraction form
    21,664.68/29,894.01 = 13,162.32/x
  3. Step 3: Cross multiply
    21,664.68x = 29,894.01 × 13,162.32
  4. Step 4: Simplify right side
    21,664.68x = 393,474,525.70
  5. Step 5: Solve for x
    x = 393,474,525.70/21,664.68
  6. Step 6: Final answer
    x = 18,162.03

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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.