Home / 19,626.24-27,078.72-18,641.28

Finding the Fourth Proportional to 19,626.24, 27,078.72 and 18,641.28

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Solution

The fourth proportional to 19,626.24, 27,078.72 and 18,641.28 is: 25,719.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,626.24 : 27,078.72 = 18,641.28 : x
  2. Step 2: Convert to fraction form
    19,626.24/27,078.72 = 18,641.28/x
  3. Step 3: Cross multiply
    19,626.24x = 27,078.72 × 18,641.28
  4. Step 4: Simplify right side
    19,626.24x = 504,782,001.56
  5. Step 5: Solve for x
    x = 504,782,001.56/19,626.24
  6. Step 6: Final answer
    x = 25,719.75

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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.