Home / 19,972.78-27,566.04-11,589.28

Finding the Fourth Proportional to 19,972.78, 27,566.04 and 11,589.28

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Solution

The fourth proportional to 19,972.78, 27,566.04 and 11,589.28 is: 15,995.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.78 : 27,566.04 = 11,589.28 : x
  2. Step 2: Convert to fraction form
    19,972.78/27,566.04 = 11,589.28/x
  3. Step 3: Cross multiply
    19,972.78x = 27,566.04 × 11,589.28
  4. Step 4: Simplify right side
    19,972.78x = 319,470,556.05
  5. Step 5: Solve for x
    x = 319,470,556.05/19,972.78
  6. Step 6: Final answer
    x = 15,995.30

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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.