Home / 21,566.12-29,761.18-12,134.68

Finding the Fourth Proportional to 21,566.12, 29,761.18 and 12,134.68

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Solution

The fourth proportional to 21,566.12, 29,761.18 and 12,134.68 is: 16,745.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,566.12 : 29,761.18 = 12,134.68 : x
  2. Step 2: Convert to fraction form
    21,566.12/29,761.18 = 12,134.68/x
  3. Step 3: Cross multiply
    21,566.12x = 29,761.18 × 12,134.68
  4. Step 4: Simplify right side
    21,566.12x = 361,142,448.09
  5. Step 5: Solve for x
    x = 361,142,448.09/21,566.12
  6. Step 6: Final answer
    x = 16,745.82

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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.