Home / 19,148.38-28,718.77-18,198.99

Finding the Fourth Proportional to 19,148.38, 28,718.77 and 18,198.99

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Solution

The fourth proportional to 19,148.38, 28,718.77 and 18,198.99 is: 27,294.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,148.38 : 28,718.77 = 18,198.99 : x
  2. Step 2: Convert to fraction form
    19,148.38/28,718.77 = 18,198.99/x
  3. Step 3: Cross multiply
    19,148.38x = 28,718.77 × 18,198.99
  4. Step 4: Simplify right side
    19,148.38x = 522,652,608.04
  5. Step 5: Solve for x
    x = 522,652,608.04/19,148.38
  6. Step 6: Final answer
    x = 27,294.87

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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.