Home / 20,624.07-30,939.45-6,389.22

Finding the Fourth Proportional to 20,624.07, 30,939.45 and 6,389.22

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Solution

The fourth proportional to 20,624.07, 30,939.45 and 6,389.22 is: 9,584.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624.07 : 30,939.45 = 6,389.22 : x
  2. Step 2: Convert to fraction form
    20,624.07/30,939.45 = 6,389.22/x
  3. Step 3: Cross multiply
    20,624.07x = 30,939.45 × 6,389.22
  4. Step 4: Simplify right side
    20,624.07x = 197,678,952.73
  5. Step 5: Solve for x
    x = 197,678,952.73/20,624.07
  6. Step 6: Final answer
    x = 9,584.87

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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.