Home / 26,142.20-39,181.17-12,083.21

Finding the Fourth Proportional to 26,142.20, 39,181.17 and 12,083.21

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Solution

The fourth proportional to 26,142.20, 39,181.17 and 12,083.21 is: 18,109.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,142.20 : 39,181.17 = 12,083.21 : x
  2. Step 2: Convert to fraction form
    26,142.20/39,181.17 = 12,083.21/x
  3. Step 3: Cross multiply
    26,142.20x = 39,181.17 × 12,083.21
  4. Step 4: Simplify right side
    26,142.20x = 473,434,301.49
  5. Step 5: Solve for x
    x = 473,434,301.49/26,142.20
  6. Step 6: Final answer
    x = 18,109.96

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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.