Home / 22,195.28-30,629.32-12,123.72

Finding the Fourth Proportional to 22,195.28, 30,629.32 and 12,123.72

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Solution

The fourth proportional to 22,195.28, 30,629.32 and 12,123.72 is: 16,730.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,195.28 : 30,629.32 = 12,123.72 : x
  2. Step 2: Convert to fraction form
    22,195.28/30,629.32 = 12,123.72/x
  3. Step 3: Cross multiply
    22,195.28x = 30,629.32 × 12,123.72
  4. Step 4: Simplify right side
    22,195.28x = 371,341,299.47
  5. Step 5: Solve for x
    x = 371,341,299.47/22,195.28
  6. Step 6: Final answer
    x = 16,730.64

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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.