Home / 21,185.54-29,237.37-12,234.68

Finding the Fourth Proportional to 21,185.54, 29,237.37 and 12,234.68

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Solution

The fourth proportional to 21,185.54, 29,237.37 and 12,234.68 is: 16,884.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,185.54 : 29,237.37 = 12,234.68 : x
  2. Step 2: Convert to fraction form
    21,185.54/29,237.37 = 12,234.68/x
  3. Step 3: Cross multiply
    21,185.54x = 29,237.37 × 12,234.68
  4. Step 4: Simplify right side
    21,185.54x = 357,709,865.99
  5. Step 5: Solve for x
    x = 357,709,865.99/21,185.54
  6. Step 6: Final answer
    x = 16,884.62

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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.