Home / 21,902.43-32,878.23-8,763.96

Finding the Fourth Proportional to 21,902.43, 32,878.23 and 8,763.96

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Solution

The fourth proportional to 21,902.43, 32,878.23 and 8,763.96 is: 13,155.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,902.43 : 32,878.23 = 8,763.96 : x
  2. Step 2: Convert to fraction form
    21,902.43/32,878.23 = 8,763.96/x
  3. Step 3: Cross multiply
    21,902.43x = 32,878.23 × 8,763.96
  4. Step 4: Simplify right side
    21,902.43x = 288,143,492.59
  5. Step 5: Solve for x
    x = 288,143,492.59/21,902.43
  6. Step 6: Final answer
    x = 13,155.78

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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.