Home / 27,985.50-41,992.83-12,399.48

Finding the Fourth Proportional to 27,985.50, 41,992.83 and 12,399.48

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Solution

The fourth proportional to 27,985.50, 41,992.83 and 12,399.48 is: 18,605.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,985.50 : 41,992.83 = 12,399.48 : x
  2. Step 2: Convert to fraction form
    27,985.50/41,992.83 = 12,399.48/x
  3. Step 3: Cross multiply
    27,985.50x = 41,992.83 × 12,399.48
  4. Step 4: Simplify right side
    27,985.50x = 520,689,255.73
  5. Step 5: Solve for x
    x = 520,689,255.73/27,985.50
  6. Step 6: Final answer
    x = 18,605.68

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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.