Home / 27,471.80-41,178.96-12,690.41

Finding the Fourth Proportional to 27,471.80, 41,178.96 and 12,690.41

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Solution

The fourth proportional to 27,471.80, 41,178.96 and 12,690.41 is: 19,022.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,471.80 : 41,178.96 = 12,690.41 : x
  2. Step 2: Convert to fraction form
    27,471.80/41,178.96 = 12,690.41/x
  3. Step 3: Cross multiply
    27,471.80x = 41,178.96 × 12,690.41
  4. Step 4: Simplify right side
    27,471.80x = 522,577,679.88
  5. Step 5: Solve for x
    x = 522,577,679.88/27,471.80
  6. Step 6: Final answer
    x = 19,022.33

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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.