Home / 21,619-32,429.50-6,625.05

Finding the Fourth Proportional to 21,619, 32,429.50 and 6,625.05

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Solution

The fourth proportional to 21,619, 32,429.50 and 6,625.05 is: 9,937.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,619 : 32,429.50 = 6,625.05 : x
  2. Step 2: Convert to fraction form
    21,619/32,429.50 = 6,625.05/x
  3. Step 3: Cross multiply
    21,619x = 32,429.50 × 6,625.05
  4. Step 4: Simplify right side
    21,619x = 214,847,058.98
  5. Step 5: Solve for x
    x = 214,847,058.98/21,619
  6. Step 6: Final answer
    x = 9,937.88

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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.