Home / 21,253.52-31,836.54-12,467.25

Finding the Fourth Proportional to 21,253.52, 31,836.54 and 12,467.25

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Solution

The fourth proportional to 21,253.52, 31,836.54 and 12,467.25 is: 18,675.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,253.52 : 31,836.54 = 12,467.25 : x
  2. Step 2: Convert to fraction form
    21,253.52/31,836.54 = 12,467.25/x
  3. Step 3: Cross multiply
    21,253.52x = 31,836.54 × 12,467.25
  4. Step 4: Simplify right side
    21,253.52x = 396,914,150.07
  5. Step 5: Solve for x
    x = 396,914,150.07/21,253.52
  6. Step 6: Final answer
    x = 18,675.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.