Home / 19,324.30-28,813.35-18,974.38

Finding the Fourth Proportional to 19,324.30, 28,813.35 and 18,974.38

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Solution

The fourth proportional to 19,324.30, 28,813.35 and 18,974.38 is: 28,291.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,324.30 : 28,813.35 = 18,974.38 : x
  2. Step 2: Convert to fraction form
    19,324.30/28,813.35 = 18,974.38/x
  3. Step 3: Cross multiply
    19,324.30x = 28,813.35 × 18,974.38
  4. Step 4: Simplify right side
    19,324.30x = 546,715,451.97
  5. Step 5: Solve for x
    x = 546,715,451.97/19,324.30
  6. Step 6: Final answer
    x = 28,291.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.