Home / 21,630.56-29,850.24-12,199.12

Finding the Fourth Proportional to 21,630.56, 29,850.24 and 12,199.12

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Solution

The fourth proportional to 21,630.56, 29,850.24 and 12,199.12 is: 16,834.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630.56 : 29,850.24 = 12,199.12 : x
  2. Step 2: Convert to fraction form
    21,630.56/29,850.24 = 12,199.12/x
  3. Step 3: Cross multiply
    21,630.56x = 29,850.24 × 12,199.12
  4. Step 4: Simplify right side
    21,630.56x = 364,146,659.79
  5. Step 5: Solve for x
    x = 364,146,659.79/21,630.56
  6. Step 6: Final answer
    x = 16,834.82

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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.