Home / 20,180.00-27,849.31-16,817.20

Finding the Fourth Proportional to 20,180.00, 27,849.31 and 16,817.20

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Solution

The fourth proportional to 20,180.00, 27,849.31 and 16,817.20 is: 23,208.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.00 : 27,849.31 = 16,817.20 : x
  2. Step 2: Convert to fraction form
    20,180.00/27,849.31 = 16,817.20/x
  3. Step 3: Cross multiply
    20,180.00x = 27,849.31 × 16,817.20
  4. Step 4: Simplify right side
    20,180.00x = 468,347,304.47
  5. Step 5: Solve for x
    x = 468,347,304.47/20,180.00
  6. Step 6: Final answer
    x = 23,208.49

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1.5x scale

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.