Home / 18,997.45-28,504.38-10,230.62

Finding the Fourth Proportional to 18,997.45, 28,504.38 and 10,230.62

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Solution

The fourth proportional to 18,997.45, 28,504.38 and 10,230.62 is: 15,350.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,997.45 : 28,504.38 = 10,230.62 : x
  2. Step 2: Convert to fraction form
    18,997.45/28,504.38 = 10,230.62/x
  3. Step 3: Cross multiply
    18,997.45x = 28,504.38 × 10,230.62
  4. Step 4: Simplify right side
    18,997.45x = 291,617,480.12
  5. Step 5: Solve for x
    x = 291,617,480.12/18,997.45
  6. Step 6: Final answer
    x = 15,350.35

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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.