Home / 27,974.12-41,990.34-12,402.68

Finding the Fourth Proportional to 27,974.12, 41,990.34 and 12,402.68

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Solution

The fourth proportional to 27,974.12, 41,990.34 and 12,402.68 is: 18,616.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,974.12 : 41,990.34 = 12,402.68 : x
  2. Step 2: Convert to fraction form
    27,974.12/41,990.34 = 12,402.68/x
  3. Step 3: Cross multiply
    27,974.12x = 41,990.34 × 12,402.68
  4. Step 4: Simplify right side
    27,974.12x = 520,792,750.11
  5. Step 5: Solve for x
    x = 520,792,750.11/27,974.12
  6. Step 6: Final answer
    x = 18,616.95

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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.