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Finding the Fourth Proportional to 20,297.00, 30,410.66 and 18,242.64

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Solution

The fourth proportional to 20,297.00, 30,410.66 and 18,242.64 is: 27,332.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,297.00 : 30,410.66 = 18,242.64 : x
  2. Step 2: Convert to fraction form
    20,297.00/30,410.66 = 18,242.64/x
  3. Step 3: Cross multiply
    20,297.00x = 30,410.66 × 18,242.64
  4. Step 4: Simplify right side
    20,297.00x = 554,770,631.33
  5. Step 5: Solve for x
    x = 554,770,631.33/20,297.00
  6. Step 6: Final answer
    x = 27,332.65

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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.