Home / 18,528.75-27,723.41-12,992.91

Finding the Fourth Proportional to 18,528.75, 27,723.41 and 12,992.91

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Solution

The fourth proportional to 18,528.75, 27,723.41 and 12,992.91 is: 19,440.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,528.75 : 27,723.41 = 12,992.91 : x
  2. Step 2: Convert to fraction form
    18,528.75/27,723.41 = 12,992.91/x
  3. Step 3: Cross multiply
    18,528.75x = 27,723.41 × 12,992.91
  4. Step 4: Simplify right side
    18,528.75x = 360,207,723.90
  5. Step 5: Solve for x
    x = 360,207,723.90/18,528.75
  6. Step 6: Final answer
    x = 19,440.48

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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.