Home / 21,539.44-29,727.10-12,108

Finding the Fourth Proportional to 21,539.44, 29,727.10 and 12,108

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Solution

The fourth proportional to 21,539.44, 29,727.10 and 12,108 is: 16,710.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,539.44 : 29,727.10 = 12,108 : x
  2. Step 2: Convert to fraction form
    21,539.44/29,727.10 = 12,108/x
  3. Step 3: Cross multiply
    21,539.44x = 29,727.10 × 12,108
  4. Step 4: Simplify right side
    21,539.44x = 359,935,726.80
  5. Step 5: Solve for x
    x = 359,935,726.80/21,539.44
  6. Step 6: Final answer
    x = 16,710.54

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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.