Home / 21,405.62-29,538.50-11,844.96

Finding the Fourth Proportional to 21,405.62, 29,538.50 and 11,844.96

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Solution

The fourth proportional to 21,405.62, 29,538.50 and 11,844.96 is: 16,345.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,405.62 : 29,538.50 = 11,844.96 : x
  2. Step 2: Convert to fraction form
    21,405.62/29,538.50 = 11,844.96/x
  3. Step 3: Cross multiply
    21,405.62x = 29,538.50 × 11,844.96
  4. Step 4: Simplify right side
    21,405.62x = 349,882,350.96
  5. Step 5: Solve for x
    x = 349,882,350.96/21,405.62
  6. Step 6: Final answer
    x = 16,345.35

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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.