Home / 27,420.28-41,121.92-9,887.84

Finding the Fourth Proportional to 27,420.28, 41,121.92 and 9,887.84

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Solution

The fourth proportional to 27,420.28, 41,121.92 and 9,887.84 is: 14,828.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,420.28 : 41,121.92 = 9,887.84 : x
  2. Step 2: Convert to fraction form
    27,420.28/41,121.92 = 9,887.84/x
  3. Step 3: Cross multiply
    27,420.28x = 41,121.92 × 9,887.84
  4. Step 4: Simplify right side
    27,420.28x = 406,606,965.45
  5. Step 5: Solve for x
    x = 406,606,965.45/27,420.28
  6. Step 6: Final answer
    x = 14,828.69

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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.