Home / 21,202.37-29,257.09-12,252.75

Finding the Fourth Proportional to 21,202.37, 29,257.09 and 12,252.75

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Solution

The fourth proportional to 21,202.37, 29,257.09 and 12,252.75 is: 16,907.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,202.37 : 29,257.09 = 12,252.75 : x
  2. Step 2: Convert to fraction form
    21,202.37/29,257.09 = 12,252.75/x
  3. Step 3: Cross multiply
    21,202.37x = 29,257.09 × 12,252.75
  4. Step 4: Simplify right side
    21,202.37x = 358,479,809.50
  5. Step 5: Solve for x
    x = 358,479,809.50/21,202.37
  6. Step 6: Final answer
    x = 16,907.54

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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.