Home / 17,921.43-24,720.12-11,556.18

Finding the Fourth Proportional to 17,921.43, 24,720.12 and 11,556.18

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Solution

The fourth proportional to 17,921.43, 24,720.12 and 11,556.18 is: 15,940.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,921.43 : 24,720.12 = 11,556.18 : x
  2. Step 2: Convert to fraction form
    17,921.43/24,720.12 = 11,556.18/x
  3. Step 3: Cross multiply
    17,921.43x = 24,720.12 × 11,556.18
  4. Step 4: Simplify right side
    17,921.43x = 285,670,156.34
  5. Step 5: Solve for x
    x = 285,670,156.34/17,921.43
  6. Step 6: Final answer
    x = 15,940.14

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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.