Home / 22,330.38-30,815.78-12,258.56

Finding the Fourth Proportional to 22,330.38, 30,815.78 and 12,258.56

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Solution

The fourth proportional to 22,330.38, 30,815.78 and 12,258.56 is: 16,916.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,330.38 : 30,815.78 = 12,258.56 : x
  2. Step 2: Convert to fraction form
    22,330.38/30,815.78 = 12,258.56/x
  3. Step 3: Cross multiply
    22,330.38x = 30,815.78 × 12,258.56
  4. Step 4: Simplify right side
    22,330.38x = 377,757,088.08
  5. Step 5: Solve for x
    x = 377,757,088.08/22,330.38
  6. Step 6: Final answer
    x = 16,916.73

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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.