Home / 19,825.20-27,358.98-10,872.90

Finding the Fourth Proportional to 19,825.20, 27,358.98 and 10,872.90

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Solution

The fourth proportional to 19,825.20, 27,358.98 and 10,872.90 is: 15,004.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,825.20 : 27,358.98 = 10,872.90 : x
  2. Step 2: Convert to fraction form
    19,825.20/27,358.98 = 10,872.90/x
  3. Step 3: Cross multiply
    19,825.20x = 27,358.98 × 10,872.90
  4. Step 4: Simplify right side
    19,825.20x = 297,471,453.64
  5. Step 5: Solve for x
    x = 297,471,453.64/19,825.20
  6. Step 6: Final answer
    x = 15,004.71

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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.