Home / 22,308.64-30,785.92-12,877.20

Finding the Fourth Proportional to 22,308.64, 30,785.92 and 12,877.20

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Solution

The fourth proportional to 22,308.64, 30,785.92 and 12,877.20 is: 17,770.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,308.64 : 30,785.92 = 12,877.20 : x
  2. Step 2: Convert to fraction form
    22,308.64/30,785.92 = 12,877.20/x
  3. Step 3: Cross multiply
    22,308.64x = 30,785.92 × 12,877.20
  4. Step 4: Simplify right side
    22,308.64x = 396,436,449.02
  5. Step 5: Solve for x
    x = 396,436,449.02/22,308.64
  6. Step 6: Final answer
    x = 17,770.53

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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.