Home / 20,336.16-27,979.20-17,935.68

Finding the Fourth Proportional to 20,336.16, 27,979.20 and 17,935.68

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Solution

The fourth proportional to 20,336.16, 27,979.20 and 17,935.68 is: 24,676.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336.16 : 27,979.20 = 17,935.68 : x
  2. Step 2: Convert to fraction form
    20,336.16/27,979.20 = 17,935.68/x
  3. Step 3: Cross multiply
    20,336.16x = 27,979.20 × 17,935.68
  4. Step 4: Simplify right side
    20,336.16x = 501,825,977.86
  5. Step 5: Solve for x
    x = 501,825,977.86/20,336.16
  6. Step 6: Final answer
    x = 24,676.54

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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.