Home / 21,725.17-29,981.19-12,293.73

Finding the Fourth Proportional to 21,725.17, 29,981.19 and 12,293.73

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Solution

The fourth proportional to 21,725.17, 29,981.19 and 12,293.73 is: 16,965.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,725.17 : 29,981.19 = 12,293.73 : x
  2. Step 2: Convert to fraction form
    21,725.17/29,981.19 = 12,293.73/x
  3. Step 3: Cross multiply
    21,725.17x = 29,981.19 × 12,293.73
  4. Step 4: Simplify right side
    21,725.17x = 368,580,654.94
  5. Step 5: Solve for x
    x = 368,580,654.94/21,725.17
  6. Step 6: Final answer
    x = 16,965.61

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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.