Home / 20,507.28-30,760.96-6,468.62

Finding the Fourth Proportional to 20,507.28, 30,760.96 and 6,468.62

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Solution

The fourth proportional to 20,507.28, 30,760.96 and 6,468.62 is: 9,702.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,507.28 : 30,760.96 = 6,468.62 : x
  2. Step 2: Convert to fraction form
    20,507.28/30,760.96 = 6,468.62/x
  3. Step 3: Cross multiply
    20,507.28x = 30,760.96 × 6,468.62
  4. Step 4: Simplify right side
    20,507.28x = 198,980,961.08
  5. Step 5: Solve for x
    x = 198,980,961.08/20,507.28
  6. Step 6: Final answer
    x = 9,702.94

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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.