Home / 22,199.28-30,634.84-12,127.72

Finding the Fourth Proportional to 22,199.28, 30,634.84 and 12,127.72

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Solution

The fourth proportional to 22,199.28, 30,634.84 and 12,127.72 is: 16,736.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,199.28 : 30,634.84 = 12,127.72 : x
  2. Step 2: Convert to fraction form
    22,199.28/30,634.84 = 12,127.72/x
  3. Step 3: Cross multiply
    22,199.28x = 30,634.84 × 12,127.72
  4. Step 4: Simplify right side
    22,199.28x = 371,530,761.76
  5. Step 5: Solve for x
    x = 371,530,761.76/22,199.28
  6. Step 6: Final answer
    x = 16,736.16

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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.