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Finding the Fourth Proportional to 20,025.68, 30,025.08 and 11,266.64

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Solution

The fourth proportional to 20,025.68, 30,025.08 and 11,266.64 is: 16,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,025.68 : 30,025.08 = 11,266.64 : x
  2. Step 2: Convert to fraction form
    20,025.68/30,025.08 = 11,266.64/x
  3. Step 3: Cross multiply
    20,025.68x = 30,025.08 × 11,266.64
  4. Step 4: Simplify right side
    20,025.68x = 338,281,767.33
  5. Step 5: Solve for x
    x = 338,281,767.33/20,025.68
  6. Step 6: Final answer
    x = 16,892.40

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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.