Home / 21,766.83-32,664.84-13,981.11

Finding the Fourth Proportional to 21,766.83, 32,664.84 and 13,981.11

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Solution

The fourth proportional to 21,766.83, 32,664.84 and 13,981.11 is: 20,981.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,766.83 : 32,664.84 = 13,981.11 : x
  2. Step 2: Convert to fraction form
    21,766.83/32,664.84 = 13,981.11/x
  3. Step 3: Cross multiply
    21,766.83x = 32,664.84 × 13,981.11
  4. Step 4: Simplify right side
    21,766.83x = 456,690,721.17
  5. Step 5: Solve for x
    x = 456,690,721.17/21,766.83
  6. Step 6: Final answer
    x = 20,981.04

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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.