Home / 14,621.88-21,930.75-4,761.30

Finding the Fourth Proportional to 14,621.88, 21,930.75 and 4,761.30

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Solution

The fourth proportional to 14,621.88, 21,930.75 and 4,761.30 is: 7,141.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,621.88 : 21,930.75 = 4,761.30 : x
  2. Step 2: Convert to fraction form
    14,621.88/21,930.75 = 4,761.30/x
  3. Step 3: Cross multiply
    14,621.88x = 21,930.75 × 4,761.30
  4. Step 4: Simplify right side
    14,621.88x = 104,418,879.98
  5. Step 5: Solve for x
    x = 104,418,879.98/14,621.88
  6. Step 6: Final answer
    x = 7,141.28

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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.