Home / 21,264.75-29,345.12-11,704.43

Finding the Fourth Proportional to 21,264.75, 29,345.12 and 11,704.43

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Solution

The fourth proportional to 21,264.75, 29,345.12 and 11,704.43 is: 16,151.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,264.75 : 29,345.12 = 11,704.43 : x
  2. Step 2: Convert to fraction form
    21,264.75/29,345.12 = 11,704.43/x
  3. Step 3: Cross multiply
    21,264.75x = 29,345.12 × 11,704.43
  4. Step 4: Simplify right side
    21,264.75x = 343,467,800.26
  5. Step 5: Solve for x
    x = 343,467,800.26/21,264.75
  6. Step 6: Final answer
    x = 16,151.98

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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.