Home / 27,892.20-41,870.70-16,811.40

Finding the Fourth Proportional to 27,892.20, 41,870.70 and 16,811.40

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Solution

The fourth proportional to 27,892.20, 41,870.70 and 16,811.40 is: 25,236.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,892.20 : 41,870.70 = 16,811.40 : x
  2. Step 2: Convert to fraction form
    27,892.20/41,870.70 = 16,811.40/x
  3. Step 3: Cross multiply
    27,892.20x = 41,870.70 × 16,811.40
  4. Step 4: Simplify right side
    27,892.20x = 703,905,085.98
  5. Step 5: Solve for x
    x = 703,905,085.98/27,892.20
  6. Step 6: Final answer
    x = 25,236.63

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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.