Home / 27,981.20-41,868.12-15,677.84

Finding the Fourth Proportional to 27,981.20, 41,868.12 and 15,677.84

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Solution

The fourth proportional to 27,981.20, 41,868.12 and 15,677.84 is: 23,458.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,981.20 : 41,868.12 = 15,677.84 : x
  2. Step 2: Convert to fraction form
    27,981.20/41,868.12 = 15,677.84/x
  3. Step 3: Cross multiply
    27,981.20x = 41,868.12 × 15,677.84
  4. Step 4: Simplify right side
    27,981.20x = 656,401,686.46
  5. Step 5: Solve for x
    x = 656,401,686.46/27,981.20
  6. Step 6: Final answer
    x = 23,458.67

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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.