Home / 21,183.96-29,238.12-12,232.92

Finding the Fourth Proportional to 21,183.96, 29,238.12 and 12,232.92

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Solution

The fourth proportional to 21,183.96, 29,238.12 and 12,232.92 is: 16,883.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,183.96 : 29,238.12 = 12,232.92 : x
  2. Step 2: Convert to fraction form
    21,183.96/29,238.12 = 12,232.92/x
  3. Step 3: Cross multiply
    21,183.96x = 29,238.12 × 12,232.92
  4. Step 4: Simplify right side
    21,183.96x = 357,667,582.91
  5. Step 5: Solve for x
    x = 357,667,582.91/21,183.96
  6. Step 6: Final answer
    x = 16,883.89

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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.