Home / 22,251.94-30,706.49-12,689.28

Finding the Fourth Proportional to 22,251.94, 30,706.49 and 12,689.28

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Solution

The fourth proportional to 22,251.94, 30,706.49 and 12,689.28 is: 17,510.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,251.94 : 30,706.49 = 12,689.28 : x
  2. Step 2: Convert to fraction form
    22,251.94/30,706.49 = 12,689.28/x
  3. Step 3: Cross multiply
    22,251.94x = 30,706.49 × 12,689.28
  4. Step 4: Simplify right side
    22,251.94x = 389,643,249.43
  5. Step 5: Solve for x
    x = 389,643,249.43/22,251.94
  6. Step 6: Final answer
    x = 17,510.53

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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.