Home / 20,271.24-27,974.97-11,320.97

Finding the Fourth Proportional to 20,271.24, 27,974.97 and 11,320.97

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Solution

The fourth proportional to 20,271.24, 27,974.97 and 11,320.97 is: 15,623.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,271.24 : 27,974.97 = 11,320.97 : x
  2. Step 2: Convert to fraction form
    20,271.24/27,974.97 = 11,320.97/x
  3. Step 3: Cross multiply
    20,271.24x = 27,974.97 × 11,320.97
  4. Step 4: Simplify right side
    20,271.24x = 316,703,656.25
  5. Step 5: Solve for x
    x = 316,703,656.25/20,271.24
  6. Step 6: Final answer
    x = 15,623.30

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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.