Home / 21,418.24-29,559.38-12,343.92

Finding the Fourth Proportional to 21,418.24, 29,559.38 and 12,343.92

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Solution

The fourth proportional to 21,418.24, 29,559.38 and 12,343.92 is: 17,035.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,418.24 : 29,559.38 = 12,343.92 : x
  2. Step 2: Convert to fraction form
    21,418.24/29,559.38 = 12,343.92/x
  3. Step 3: Cross multiply
    21,418.24x = 29,559.38 × 12,343.92
  4. Step 4: Simplify right side
    21,418.24x = 364,878,621.97
  5. Step 5: Solve for x
    x = 364,878,621.97/21,418.24
  6. Step 6: Final answer
    x = 17,035.88

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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.