Home / 27,378.31-41,105.28-18,923.98

Finding the Fourth Proportional to 27,378.31, 41,105.28 and 18,923.98

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Solution

The fourth proportional to 27,378.31, 41,105.28 and 18,923.98 is: 28,412.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,378.31 : 41,105.28 = 18,923.98 : x
  2. Step 2: Convert to fraction form
    27,378.31/41,105.28 = 18,923.98/x
  3. Step 3: Cross multiply
    27,378.31x = 41,105.28 × 18,923.98
  4. Step 4: Simplify right side
    27,378.31x = 777,875,401.99
  5. Step 5: Solve for x
    x = 777,875,401.99/27,378.31
  6. Step 6: Final answer
    x = 28,412.11

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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.