Home / 21,630.51-29,850.80-12,199.23

Finding the Fourth Proportional to 21,630.51, 29,850.80 and 12,199.23

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Solution

The fourth proportional to 21,630.51, 29,850.80 and 12,199.23 is: 16,835.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630.51 : 29,850.80 = 12,199.23 : x
  2. Step 2: Convert to fraction form
    21,630.51/29,850.80 = 12,199.23/x
  3. Step 3: Cross multiply
    21,630.51x = 29,850.80 × 12,199.23
  4. Step 4: Simplify right side
    21,630.51x = 364,156,713.89
  5. Step 5: Solve for x
    x = 364,156,713.89/21,630.51
  6. Step 6: Final answer
    x = 16,835.33

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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.