Home / 21,511.63-32,262.58-8,179.87

Finding the Fourth Proportional to 21,511.63, 32,262.58 and 8,179.87

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Solution

The fourth proportional to 21,511.63, 32,262.58 and 8,179.87 is: 12,267.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,511.63 : 32,262.58 = 8,179.87 : x
  2. Step 2: Convert to fraction form
    21,511.63/32,262.58 = 8,179.87/x
  3. Step 3: Cross multiply
    21,511.63x = 32,262.58 × 8,179.87
  4. Step 4: Simplify right side
    21,511.63x = 263,903,710.26
  5. Step 5: Solve for x
    x = 263,903,710.26/21,511.63
  6. Step 6: Final answer
    x = 12,267.96

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1.5x scale

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.