Home / 69,215.47-103,847.30-21,837.88

Finding the Fourth Proportional to 69,215.47, 103,847.30 and 21,837.88

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Solution

The fourth proportional to 69,215.47, 103,847.30 and 21,837.88 is: 32,764.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,215.47 : 103,847.30 = 21,837.88 : x
  2. Step 2: Convert to fraction form
    69,215.47/103,847.30 = 21,837.88/x
  3. Step 3: Cross multiply
    69,215.47x = 103,847.30 × 21,837.88
  4. Step 4: Simplify right side
    69,215.47x = 2,267,804,778.29
  5. Step 5: Solve for x
    x = 2,267,804,778.29/69,215.47
  6. Step 6: Final answer
    x = 32,764.42

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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.