Home / 23,136.72-31,929.24-13,699.84

Finding the Fourth Proportional to 23,136.72, 31,929.24 and 13,699.84

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Solution

The fourth proportional to 23,136.72, 31,929.24 and 13,699.84 is: 18,906.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,136.72 : 31,929.24 = 13,699.84 : x
  2. Step 2: Convert to fraction form
    23,136.72/31,929.24 = 13,699.84/x
  3. Step 3: Cross multiply
    23,136.72x = 31,929.24 × 13,699.84
  4. Step 4: Simplify right side
    23,136.72x = 437,425,479.32
  5. Step 5: Solve for x
    x = 437,425,479.32/23,136.72
  6. Step 6: Final answer
    x = 18,906.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.