Home / 27,520.80-41,257.20-18,727.20

Finding the Fourth Proportional to 27,520.80, 41,257.20 and 18,727.20

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Solution

The fourth proportional to 27,520.80, 41,257.20 and 18,727.20 is: 28,074.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,520.80 : 41,257.20 = 18,727.20 : x
  2. Step 2: Convert to fraction form
    27,520.80/41,257.20 = 18,727.20/x
  3. Step 3: Cross multiply
    27,520.80x = 41,257.20 × 18,727.20
  4. Step 4: Simplify right side
    27,520.80x = 772,631,835.84
  5. Step 5: Solve for x
    x = 772,631,835.84/27,520.80
  6. Step 6: Final answer
    x = 28,074.47

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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.