Home / 21,424.98-32,140.53-6,635.22

Finding the Fourth Proportional to 21,424.98, 32,140.53 and 6,635.22

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Solution

The fourth proportional to 21,424.98, 32,140.53 and 6,635.22 is: 9,953.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,424.98 : 32,140.53 = 6,635.22 : x
  2. Step 2: Convert to fraction form
    21,424.98/32,140.53 = 6,635.22/x
  3. Step 3: Cross multiply
    21,424.98x = 32,140.53 × 6,635.22
  4. Step 4: Simplify right side
    21,424.98x = 213,259,487.47
  5. Step 5: Solve for x
    x = 213,259,487.47/21,424.98
  6. Step 6: Final answer
    x = 9,953.78

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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.