Home / 21,203.75-29,262.09-11,772.31

Finding the Fourth Proportional to 21,203.75, 29,262.09 and 11,772.31

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Solution

The fourth proportional to 21,203.75, 29,262.09 and 11,772.31 is: 16,246.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,203.75 : 29,262.09 = 11,772.31 : x
  2. Step 2: Convert to fraction form
    21,203.75/29,262.09 = 11,772.31/x
  3. Step 3: Cross multiply
    21,203.75x = 29,262.09 × 11,772.31
  4. Step 4: Simplify right side
    21,203.75x = 344,482,394.73
  5. Step 5: Solve for x
    x = 344,482,394.73/21,203.75
  6. Step 6: Final answer
    x = 16,246.30

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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.