Home / 21,418.37-29,556.27-11,727.57

Finding the Fourth Proportional to 21,418.37, 29,556.27 and 11,727.57

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Solution

The fourth proportional to 21,418.37, 29,556.27 and 11,727.57 is: 16,183.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,418.37 : 29,556.27 = 11,727.57 : x
  2. Step 2: Convert to fraction form
    21,418.37/29,556.27 = 11,727.57/x
  3. Step 3: Cross multiply
    21,418.37x = 29,556.27 × 11,727.57
  4. Step 4: Simplify right side
    21,418.37x = 346,623,225.36
  5. Step 5: Solve for x
    x = 346,623,225.36/21,418.37
  6. Step 6: Final answer
    x = 16,183.45

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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.