Home / 18,880.16-28,318.42-5,732.65

Finding the Fourth Proportional to 18,880.16, 28,318.42 and 5,732.65

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Solution

The fourth proportional to 18,880.16, 28,318.42 and 5,732.65 is: 8,598.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,880.16 : 28,318.42 = 5,732.65 : x
  2. Step 2: Convert to fraction form
    18,880.16/28,318.42 = 5,732.65/x
  3. Step 3: Cross multiply
    18,880.16x = 28,318.42 × 5,732.65
  4. Step 4: Simplify right side
    18,880.16x = 162,339,505.29
  5. Step 5: Solve for x
    x = 162,339,505.29/18,880.16
  6. Step 6: Final answer
    x = 8,598.42

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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.