Home / 21,683.07-29,922.25-12,251.43

Finding the Fourth Proportional to 21,683.07, 29,922.25 and 12,251.43

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Solution

The fourth proportional to 21,683.07, 29,922.25 and 12,251.43 is: 16,906.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,683.07 : 29,922.25 = 12,251.43 : x
  2. Step 2: Convert to fraction form
    21,683.07/29,922.25 = 12,251.43/x
  3. Step 3: Cross multiply
    21,683.07x = 29,922.25 × 12,251.43
  4. Step 4: Simplify right side
    21,683.07x = 366,590,426.12
  5. Step 5: Solve for x
    x = 366,590,426.12/21,683.07
  6. Step 6: Final answer
    x = 16,906.76

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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.