Home / 21,898.69-32,868.79-13,553.46

Finding the Fourth Proportional to 21,898.69, 32,868.79 and 13,553.46

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Solution

The fourth proportional to 21,898.69, 32,868.79 and 13,553.46 is: 20,343.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,898.69 : 32,868.79 = 13,553.46 : x
  2. Step 2: Convert to fraction form
    21,898.69/32,868.79 = 13,553.46/x
  3. Step 3: Cross multiply
    21,898.69x = 32,868.79 × 13,553.46
  4. Step 4: Simplify right side
    21,898.69x = 445,485,796.63
  5. Step 5: Solve for x
    x = 445,485,796.63/21,898.69
  6. Step 6: Final answer
    x = 20,343.04

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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.