Home / 22,179.54-30,607.47-12,619.20

Finding the Fourth Proportional to 22,179.54, 30,607.47 and 12,619.20

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Solution

The fourth proportional to 22,179.54, 30,607.47 and 12,619.20 is: 17,414.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,179.54 : 30,607.47 = 12,619.20 : x
  2. Step 2: Convert to fraction form
    22,179.54/30,607.47 = 12,619.20/x
  3. Step 3: Cross multiply
    22,179.54x = 30,607.47 × 12,619.20
  4. Step 4: Simplify right side
    22,179.54x = 386,241,785.42
  5. Step 5: Solve for x
    x = 386,241,785.42/22,179.54
  6. Step 6: Final answer
    x = 17,414.33

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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.