Home / 21,377.22-32,080.41-12,835.86

Finding the Fourth Proportional to 21,377.22, 32,080.41 and 12,835.86

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Solution

The fourth proportional to 21,377.22, 32,080.41 and 12,835.86 is: 19,262.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,377.22 : 32,080.41 = 12,835.86 : x
  2. Step 2: Convert to fraction form
    21,377.22/32,080.41 = 12,835.86/x
  3. Step 3: Cross multiply
    21,377.22x = 32,080.41 × 12,835.86
  4. Step 4: Simplify right side
    21,377.22x = 411,779,651.50
  5. Step 5: Solve for x
    x = 411,779,651.50/21,377.22
  6. Step 6: Final answer
    x = 19,262.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.