Home / 18,890.20-28,336.31-5,741.57

Finding the Fourth Proportional to 18,890.20, 28,336.31 and 5,741.57

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Solution

The fourth proportional to 18,890.20, 28,336.31 and 5,741.57 is: 8,612.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890.20 : 28,336.31 = 5,741.57 : x
  2. Step 2: Convert to fraction form
    18,890.20/28,336.31 = 5,741.57/x
  3. Step 3: Cross multiply
    18,890.20x = 28,336.31 × 5,741.57
  4. Step 4: Simplify right side
    18,890.20x = 162,694,907.41
  5. Step 5: Solve for x
    x = 162,694,907.41/18,890.20
  6. Step 6: Final answer
    x = 8,612.66

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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.