Home / 21,609.46-29,821.41-12,049.12

Finding the Fourth Proportional to 21,609.46, 29,821.41 and 12,049.12

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Solution

The fourth proportional to 21,609.46, 29,821.41 and 12,049.12 is: 16,627.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,609.46 : 29,821.41 = 12,049.12 : x
  2. Step 2: Convert to fraction form
    21,609.46/29,821.41 = 12,049.12/x
  3. Step 3: Cross multiply
    21,609.46x = 29,821.41 × 12,049.12
  4. Step 4: Simplify right side
    21,609.46x = 359,321,747.66
  5. Step 5: Solve for x
    x = 359,321,747.66/21,609.46
  6. Step 6: Final answer
    x = 16,627.98

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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.