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Finding the Fourth Proportional to 27,026.80, 40,511.40 and 10,380.40

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Solution

The fourth proportional to 27,026.80, 40,511.40 and 10,380.40 is: 15,559.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,026.80 : 40,511.40 = 10,380.40 : x
  2. Step 2: Convert to fraction form
    27,026.80/40,511.40 = 10,380.40/x
  3. Step 3: Cross multiply
    27,026.80x = 40,511.40 × 10,380.40
  4. Step 4: Simplify right side
    27,026.80x = 420,524,536.56
  5. Step 5: Solve for x
    x = 420,524,536.56/27,026.80
  6. Step 6: Final answer
    x = 15,559.54

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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.