Home / 20,796.99-31,177.81-9,101.47

Finding the Fourth Proportional to 20,796.99, 31,177.81 and 9,101.47

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Solution

The fourth proportional to 20,796.99, 31,177.81 and 9,101.47 is: 13,644.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,796.99 : 31,177.81 = 9,101.47 : x
  2. Step 2: Convert to fraction form
    20,796.99/31,177.81 = 9,101.47/x
  3. Step 3: Cross multiply
    20,796.99x = 31,177.81 × 9,101.47
  4. Step 4: Simplify right side
    20,796.99x = 283,763,856.87
  5. Step 5: Solve for x
    x = 283,763,856.87/20,796.99
  6. Step 6: Final answer
    x = 13,644.47

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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.