Home / 21,610.11-29,824.88-12,661.18

Finding the Fourth Proportional to 21,610.11, 29,824.88 and 12,661.18

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Solution

The fourth proportional to 21,610.11, 29,824.88 and 12,661.18 is: 17,474.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,610.11 : 29,824.88 = 12,661.18 : x
  2. Step 2: Convert to fraction form
    21,610.11/29,824.88 = 12,661.18/x
  3. Step 3: Cross multiply
    21,610.11x = 29,824.88 × 12,661.18
  4. Step 4: Simplify right side
    21,610.11x = 377,618,110.85
  5. Step 5: Solve for x
    x = 377,618,110.85/21,610.11
  6. Step 6: Final answer
    x = 17,474.14

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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.