Home / 21,369.53-32,040.38-7,136.25

Finding the Fourth Proportional to 21,369.53, 32,040.38 and 7,136.25

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Solution

The fourth proportional to 21,369.53, 32,040.38 and 7,136.25 is: 10,699.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,369.53 : 32,040.38 = 7,136.25 : x
  2. Step 2: Convert to fraction form
    21,369.53/32,040.38 = 7,136.25/x
  3. Step 3: Cross multiply
    21,369.53x = 32,040.38 × 7,136.25
  4. Step 4: Simplify right side
    21,369.53x = 228,648,126.09
  5. Step 5: Solve for x
    x = 228,648,126.09/21,369.53
  6. Step 6: Final answer
    x = 10,699.73

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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.