Home / 21,630.59-29,850.20-12,199.16

Finding the Fourth Proportional to 21,630.59, 29,850.20 and 12,199.16

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Solution

The fourth proportional to 21,630.59, 29,850.20 and 12,199.16 is: 16,834.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630.59 : 29,850.20 = 12,199.16 : x
  2. Step 2: Convert to fraction form
    21,630.59/29,850.20 = 12,199.16/x
  3. Step 3: Cross multiply
    21,630.59x = 29,850.20 × 12,199.16
  4. Step 4: Simplify right side
    21,630.59x = 364,147,325.92
  5. Step 5: Solve for x
    x = 364,147,325.92/21,630.59
  6. Step 6: Final answer
    x = 16,834.83

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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.