Home / 20,618.96-30,930.70-6,575.72

Finding the Fourth Proportional to 20,618.96, 30,930.70 and 6,575.72

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Solution

The fourth proportional to 20,618.96, 30,930.70 and 6,575.72 is: 9,864.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,618.96 : 30,930.70 = 6,575.72 : x
  2. Step 2: Convert to fraction form
    20,618.96/30,930.70 = 6,575.72/x
  3. Step 3: Cross multiply
    20,618.96x = 30,930.70 × 6,575.72
  4. Step 4: Simplify right side
    20,618.96x = 203,391,622.60
  5. Step 5: Solve for x
    x = 203,391,622.60/20,618.96
  6. Step 6: Final answer
    x = 9,864.30

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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.