Home / 21,630.59-29,849.94-12,199.22

Finding the Fourth Proportional to 21,630.59, 29,849.94 and 12,199.22

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Solution

The fourth proportional to 21,630.59, 29,849.94 and 12,199.22 is: 16,834.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630.59 : 29,849.94 = 12,199.22 : x
  2. Step 2: Convert to fraction form
    21,630.59/29,849.94 = 12,199.22/x
  3. Step 3: Cross multiply
    21,630.59x = 29,849.94 × 12,199.22
  4. Step 4: Simplify right side
    21,630.59x = 364,145,835.80
  5. Step 5: Solve for x
    x = 364,145,835.80/21,630.59
  6. Step 6: Final answer
    x = 16,834.77

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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.