Home / 18,880.55-28,321.45-5,732.88

Finding the Fourth Proportional to 18,880.55, 28,321.45 and 5,732.88

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Solution

The fourth proportional to 18,880.55, 28,321.45 and 5,732.88 is: 8,599.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,880.55 : 28,321.45 = 5,732.88 : x
  2. Step 2: Convert to fraction form
    18,880.55/28,321.45 = 5,732.88/x
  3. Step 3: Cross multiply
    18,880.55x = 28,321.45 × 5,732.88
  4. Step 4: Simplify right side
    18,880.55x = 162,363,474.28
  5. Step 5: Solve for x
    x = 162,363,474.28/18,880.55
  6. Step 6: Final answer
    x = 8,599.51

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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.