Home / 20,644.48-30,939.36-10,792

Finding the Fourth Proportional to 20,644.48, 30,939.36 and 10,792

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Solution

The fourth proportional to 20,644.48, 30,939.36 and 10,792 is: 16,173.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,644.48 : 30,939.36 = 10,792 : x
  2. Step 2: Convert to fraction form
    20,644.48/30,939.36 = 10,792/x
  3. Step 3: Cross multiply
    20,644.48x = 30,939.36 × 10,792
  4. Step 4: Simplify right side
    20,644.48x = 333,897,573.12
  5. Step 5: Solve for x
    x = 333,897,573.12/20,644.48
  6. Step 6: Final answer
    x = 16,173.70

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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.