Home / 22,181.82-30,609.60-12,750.39

Finding the Fourth Proportional to 22,181.82, 30,609.60 and 12,750.39

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Solution

The fourth proportional to 22,181.82, 30,609.60 and 12,750.39 is: 17,594.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,181.82 : 30,609.60 = 12,750.39 : x
  2. Step 2: Convert to fraction form
    22,181.82/30,609.60 = 12,750.39/x
  3. Step 3: Cross multiply
    22,181.82x = 30,609.60 × 12,750.39
  4. Step 4: Simplify right side
    22,181.82x = 390,284,337.74
  5. Step 5: Solve for x
    x = 390,284,337.74/22,181.82
  6. Step 6: Final answer
    x = 17,594.78

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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.