Home / 18,933.93-28,400.88-18,906.57

Finding the Fourth Proportional to 18,933.93, 28,400.88 and 18,906.57

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Solution

The fourth proportional to 18,933.93, 28,400.88 and 18,906.57 is: 28,359.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933.93 : 28,400.88 = 18,906.57 : x
  2. Step 2: Convert to fraction form
    18,933.93/28,400.88 = 18,906.57/x
  3. Step 3: Cross multiply
    18,933.93x = 28,400.88 × 18,906.57
  4. Step 4: Simplify right side
    18,933.93x = 536,963,225.78
  5. Step 5: Solve for x
    x = 536,963,225.78/18,933.93
  6. Step 6: Final answer
    x = 28,359.84

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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.