Home / 22,221.28-30,664.24-12,283.36

Finding the Fourth Proportional to 22,221.28, 30,664.24 and 12,283.36

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Solution

The fourth proportional to 22,221.28, 30,664.24 and 12,283.36 is: 16,950.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,221.28 : 30,664.24 = 12,283.36 : x
  2. Step 2: Convert to fraction form
    22,221.28/30,664.24 = 12,283.36/x
  3. Step 3: Cross multiply
    22,221.28x = 30,664.24 × 12,283.36
  4. Step 4: Simplify right side
    22,221.28x = 376,659,899.05
  5. Step 5: Solve for x
    x = 376,659,899.05/22,221.28
  6. Step 6: Final answer
    x = 16,950.41

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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.