Home / 18,833.87-28,255.37-5,685.45

Finding the Fourth Proportional to 18,833.87, 28,255.37 and 5,685.45

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Solution

The fourth proportional to 18,833.87, 28,255.37 and 5,685.45 is: 8,529.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,833.87 : 28,255.37 = 5,685.45 : x
  2. Step 2: Convert to fraction form
    18,833.87/28,255.37 = 5,685.45/x
  3. Step 3: Cross multiply
    18,833.87x = 28,255.37 × 5,685.45
  4. Step 4: Simplify right side
    18,833.87x = 160,644,464.94
  5. Step 5: Solve for x
    x = 160,644,464.94/18,833.87
  6. Step 6: Final answer
    x = 8,529.55

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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.