Home / 22,308.64-30,785.76-12,236.80

Finding the Fourth Proportional to 22,308.64, 30,785.76 and 12,236.80

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Solution

The fourth proportional to 22,308.64, 30,785.76 and 12,236.80 is: 16,886.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,308.64 : 30,785.76 = 12,236.80 : x
  2. Step 2: Convert to fraction form
    22,308.64/30,785.76 = 12,236.80/x
  3. Step 3: Cross multiply
    22,308.64x = 30,785.76 × 12,236.80
  4. Step 4: Simplify right side
    22,308.64x = 376,719,187.97
  5. Step 5: Solve for x
    x = 376,719,187.97/22,308.64
  6. Step 6: Final answer
    x = 16,886.69

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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.