Home / 20,456.24-28,230.44-11,963.84

Finding the Fourth Proportional to 20,456.24, 28,230.44 and 11,963.84

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Solution

The fourth proportional to 20,456.24, 28,230.44 and 11,963.84 is: 16,510.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,456.24 : 28,230.44 = 11,963.84 : x
  2. Step 2: Convert to fraction form
    20,456.24/28,230.44 = 11,963.84/x
  3. Step 3: Cross multiply
    20,456.24x = 28,230.44 × 11,963.84
  4. Step 4: Simplify right side
    20,456.24x = 337,744,467.29
  5. Step 5: Solve for x
    x = 337,744,467.29/20,456.24
  6. Step 6: Final answer
    x = 16,510.58

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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.