Home / 20,336.22-28,057.59-11,382.30

Finding the Fourth Proportional to 20,336.22, 28,057.59 and 11,382.30

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Solution

The fourth proportional to 20,336.22, 28,057.59 and 11,382.30 is: 15,704.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336.22 : 28,057.59 = 11,382.30 : x
  2. Step 2: Convert to fraction form
    20,336.22/28,057.59 = 11,382.30/x
  3. Step 3: Cross multiply
    20,336.22x = 28,057.59 × 11,382.30
  4. Step 4: Simplify right side
    20,336.22x = 319,359,906.66
  5. Step 5: Solve for x
    x = 319,359,906.66/20,336.22
  6. Step 6: Final answer
    x = 15,704.00

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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.