Home / 34,276.40-51,382.20-20,247.20

Finding the Fourth Proportional to 34,276.40, 51,382.20 and 20,247.20

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Solution

The fourth proportional to 34,276.40, 51,382.20 and 20,247.20 is: 30,351.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,276.40 : 51,382.20 = 20,247.20 : x
  2. Step 2: Convert to fraction form
    34,276.40/51,382.20 = 20,247.20/x
  3. Step 3: Cross multiply
    34,276.40x = 51,382.20 × 20,247.20
  4. Step 4: Simplify right side
    34,276.40x = 1,040,345,679.84
  5. Step 5: Solve for x
    x = 1,040,345,679.84/34,276.40
  6. Step 6: Final answer
    x = 30,351.66

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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.