Home / 20,618.08-30,930.80-6,581.19

Finding the Fourth Proportional to 20,618.08, 30,930.80 and 6,581.19

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Solution

The fourth proportional to 20,618.08, 30,930.80 and 6,581.19 is: 9,872.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,618.08 : 30,930.80 = 6,581.19 : x
  2. Step 2: Convert to fraction form
    20,618.08/30,930.80 = 6,581.19/x
  3. Step 3: Cross multiply
    20,618.08x = 30,930.80 × 6,581.19
  4. Step 4: Simplify right side
    20,618.08x = 203,561,471.65
  5. Step 5: Solve for x
    x = 203,561,471.65/20,618.08
  6. Step 6: Final answer
    x = 9,872.96

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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.