Home / 20,424.06-28,177.20-12,463.38

Finding the Fourth Proportional to 20,424.06, 28,177.20 and 12,463.38

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Solution

The fourth proportional to 20,424.06, 28,177.20 and 12,463.38 is: 17,194.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,424.06 : 28,177.20 = 12,463.38 : x
  2. Step 2: Convert to fraction form
    20,424.06/28,177.20 = 12,463.38/x
  3. Step 3: Cross multiply
    20,424.06x = 28,177.20 × 12,463.38
  4. Step 4: Simplify right side
    20,424.06x = 351,183,150.94
  5. Step 5: Solve for x
    x = 351,183,150.94/20,424.06
  6. Step 6: Final answer
    x = 17,194.58

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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.