Home / 20,468.16-28,245.92-11,636.16

Finding the Fourth Proportional to 20,468.16, 28,245.92 and 11,636.16

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Solution

The fourth proportional to 20,468.16, 28,245.92 and 11,636.16 is: 16,057.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,468.16 : 28,245.92 = 11,636.16 : x
  2. Step 2: Convert to fraction form
    20,468.16/28,245.92 = 11,636.16/x
  3. Step 3: Cross multiply
    20,468.16x = 28,245.92 × 11,636.16
  4. Step 4: Simplify right side
    20,468.16x = 328,674,044.47
  5. Step 5: Solve for x
    x = 328,674,044.47/20,468.16
  6. Step 6: Final answer
    x = 16,057.82

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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.