Home / 34,999.29-48,299.90-21,579.31

Finding the Fourth Proportional to 34,999.29, 48,299.90 and 21,579.31

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Solution

The fourth proportional to 34,999.29, 48,299.90 and 21,579.31 is: 29,779.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,999.29 : 48,299.90 = 21,579.31 : x
  2. Step 2: Convert to fraction form
    34,999.29/48,299.90 = 21,579.31/x
  3. Step 3: Cross multiply
    34,999.29x = 48,299.90 × 21,579.31
  4. Step 4: Simplify right side
    34,999.29x = 1,042,278,467.55
  5. Step 5: Solve for x
    x = 1,042,278,467.55/34,999.29
  6. Step 6: Final answer
    x = 29,779.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.