Home / 14,136.66-21,172.18-13,644.60

Finding the Fourth Proportional to 14,136.66, 21,172.18 and 13,644.60

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Solution

The fourth proportional to 14,136.66, 21,172.18 and 13,644.60 is: 20,435.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,136.66 : 21,172.18 = 13,644.60 : x
  2. Step 2: Convert to fraction form
    14,136.66/21,172.18 = 13,644.60/x
  3. Step 3: Cross multiply
    14,136.66x = 21,172.18 × 13,644.60
  4. Step 4: Simplify right side
    14,136.66x = 288,885,927.23
  5. Step 5: Solve for x
    x = 288,885,927.23/14,136.66
  6. Step 6: Final answer
    x = 20,435.23

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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.