Home / 20,227.32-30,345.84-6,186.78

Finding the Fourth Proportional to 20,227.32, 30,345.84 and 6,186.78

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Solution

The fourth proportional to 20,227.32, 30,345.84 and 6,186.78 is: 9,281.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,227.32 : 30,345.84 = 6,186.78 : x
  2. Step 2: Convert to fraction form
    20,227.32/30,345.84 = 6,186.78/x
  3. Step 3: Cross multiply
    20,227.32x = 30,345.84 × 6,186.78
  4. Step 4: Simplify right side
    20,227.32x = 187,743,036.00
  5. Step 5: Solve for x
    x = 187,743,036.00/20,227.32
  6. Step 6: Final answer
    x = 9,281.66

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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.