Home / 20,326.32-30,498.12-9,791.28

Finding the Fourth Proportional to 20,326.32, 30,498.12 and 9,791.28

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Solution

The fourth proportional to 20,326.32, 30,498.12 and 9,791.28 is: 14,691.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,326.32 : 30,498.12 = 9,791.28 : x
  2. Step 2: Convert to fraction form
    20,326.32/30,498.12 = 9,791.28/x
  3. Step 3: Cross multiply
    20,326.32x = 30,498.12 × 9,791.28
  4. Step 4: Simplify right side
    20,326.32x = 298,615,632.39
  5. Step 5: Solve for x
    x = 298,615,632.39/20,326.32
  6. Step 6: Final answer
    x = 14,691.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.