Home / 21,767.80-32,643.50-8,622.04

Finding the Fourth Proportional to 21,767.80, 32,643.50 and 8,622.04

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Solution

The fourth proportional to 21,767.80, 32,643.50 and 8,622.04 is: 12,929.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,767.80 : 32,643.50 = 8,622.04 : x
  2. Step 2: Convert to fraction form
    21,767.80/32,643.50 = 8,622.04/x
  3. Step 3: Cross multiply
    21,767.80x = 32,643.50 × 8,622.04
  4. Step 4: Simplify right side
    21,767.80x = 281,453,562.74
  5. Step 5: Solve for x
    x = 281,453,562.74/21,767.80
  6. Step 6: Final answer
    x = 12,929.81

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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.