Home / 27,890.70-41,868.45-16,809.90

Finding the Fourth Proportional to 27,890.70, 41,868.45 and 16,809.90

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Solution

The fourth proportional to 27,890.70, 41,868.45 and 16,809.90 is: 25,234.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,890.70 : 41,868.45 = 16,809.90 : x
  2. Step 2: Convert to fraction form
    27,890.70/41,868.45 = 16,809.90/x
  3. Step 3: Cross multiply
    27,890.70x = 41,868.45 × 16,809.90
  4. Step 4: Simplify right side
    27,890.70x = 703,804,457.66
  5. Step 5: Solve for x
    x = 703,804,457.66/27,890.70
  6. Step 6: Final answer
    x = 25,234.38

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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.