Home / 26,168.81-39,258.08-12,119.55

Finding the Fourth Proportional to 26,168.81, 39,258.08 and 12,119.55

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Solution

The fourth proportional to 26,168.81, 39,258.08 and 12,119.55 is: 18,181.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,168.81 : 39,258.08 = 12,119.55 : x
  2. Step 2: Convert to fraction form
    26,168.81/39,258.08 = 12,119.55/x
  3. Step 3: Cross multiply
    26,168.81x = 39,258.08 × 12,119.55
  4. Step 4: Simplify right side
    26,168.81x = 475,790,202.87
  5. Step 5: Solve for x
    x = 475,790,202.87/26,168.81
  6. Step 6: Final answer
    x = 18,181.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.