Home / 18,727.10-28,095.39-5,579.54

Finding the Fourth Proportional to 18,727.10, 28,095.39 and 5,579.54

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Solution

The fourth proportional to 18,727.10, 28,095.39 and 5,579.54 is: 8,370.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,727.10 : 28,095.39 = 5,579.54 : x
  2. Step 2: Convert to fraction form
    18,727.10/28,095.39 = 5,579.54/x
  3. Step 3: Cross multiply
    18,727.10x = 28,095.39 × 5,579.54
  4. Step 4: Simplify right side
    18,727.10x = 156,759,352.32
  5. Step 5: Solve for x
    x = 156,759,352.32/18,727.10
  6. Step 6: Final answer
    x = 8,370.72

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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.