Home / 21,183.01-29,229.23-12,228.84

Finding the Fourth Proportional to 21,183.01, 29,229.23 and 12,228.84

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Solution

The fourth proportional to 21,183.01, 29,229.23 and 12,228.84 is: 16,873.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,183.01 : 29,229.23 = 12,228.84 : x
  2. Step 2: Convert to fraction form
    21,183.01/29,229.23 = 12,228.84/x
  3. Step 3: Cross multiply
    21,183.01x = 29,229.23 × 12,228.84
  4. Step 4: Simplify right side
    21,183.01x = 357,439,607.57
  5. Step 5: Solve for x
    x = 357,439,607.57/21,183.01
  6. Step 6: Final answer
    x = 16,873.88

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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.