Home / 19,084.38-28,640.24-14,139.12

Finding the Fourth Proportional to 19,084.38, 28,640.24 and 14,139.12

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Solution

The fourth proportional to 19,084.38, 28,640.24 and 14,139.12 is: 21,218.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,084.38 : 28,640.24 = 14,139.12 : x
  2. Step 2: Convert to fraction form
    19,084.38/28,640.24 = 14,139.12/x
  3. Step 3: Cross multiply
    19,084.38x = 28,640.24 × 14,139.12
  4. Step 4: Simplify right side
    19,084.38x = 404,947,719.49
  5. Step 5: Solve for x
    x = 404,947,719.49/19,084.38
  6. Step 6: Final answer
    x = 21,218.80

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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.