Home / 19,089.20-28,639.76-8,568.04

Finding the Fourth Proportional to 19,089.20, 28,639.76 and 8,568.04

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Solution

The fourth proportional to 19,089.20, 28,639.76 and 8,568.04 is: 12,854.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,089.20 : 28,639.76 = 8,568.04 : x
  2. Step 2: Convert to fraction form
    19,089.20/28,639.76 = 8,568.04/x
  3. Step 3: Cross multiply
    19,089.20x = 28,639.76 × 8,568.04
  4. Step 4: Simplify right side
    19,089.20x = 245,386,609.27
  5. Step 5: Solve for x
    x = 245,386,609.27/19,089.20
  6. Step 6: Final answer
    x = 12,854.74

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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.