Home / 21,943.94-30,283.17-12,512.66

Finding the Fourth Proportional to 21,943.94, 30,283.17 and 12,512.66

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Solution

The fourth proportional to 21,943.94, 30,283.17 and 12,512.66 is: 17,267.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,943.94 : 30,283.17 = 12,512.66 : x
  2. Step 2: Convert to fraction form
    21,943.94/30,283.17 = 12,512.66/x
  3. Step 3: Cross multiply
    21,943.94x = 30,283.17 × 12,512.66
  4. Step 4: Simplify right side
    21,943.94x = 378,923,009.93
  5. Step 5: Solve for x
    x = 378,923,009.93/21,943.94
  6. Step 6: Final answer
    x = 17,267.77

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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.