Home / 20,480.24-28,262.76-12,098.48

Finding the Fourth Proportional to 20,480.24, 28,262.76 and 12,098.48

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Solution

The fourth proportional to 20,480.24, 28,262.76 and 12,098.48 is: 16,695.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,480.24 : 28,262.76 = 12,098.48 : x
  2. Step 2: Convert to fraction form
    20,480.24/28,262.76 = 12,098.48/x
  3. Step 3: Cross multiply
    20,480.24x = 28,262.76 × 12,098.48
  4. Step 4: Simplify right side
    20,480.24x = 341,936,436.60
  5. Step 5: Solve for x
    x = 341,936,436.60/20,480.24
  6. Step 6: Final answer
    x = 16,695.92

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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.