Home / 19,640.56-27,083.64-15,165.04

Finding the Fourth Proportional to 19,640.56, 27,083.64 and 15,165.04

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Solution

The fourth proportional to 19,640.56, 27,083.64 and 15,165.04 is: 20,912.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,640.56 : 27,083.64 = 15,165.04 : x
  2. Step 2: Convert to fraction form
    19,640.56/27,083.64 = 15,165.04/x
  3. Step 3: Cross multiply
    19,640.56x = 27,083.64 × 15,165.04
  4. Step 4: Simplify right side
    19,640.56x = 410,724,483.95
  5. Step 5: Solve for x
    x = 410,724,483.95/19,640.56
  6. Step 6: Final answer
    x = 20,912.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.