Home / 21,664.34-32,510.28-11,809.88

Finding the Fourth Proportional to 21,664.34, 32,510.28 and 11,809.88

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Solution

The fourth proportional to 21,664.34, 32,510.28 and 11,809.88 is: 17,722.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,664.34 : 32,510.28 = 11,809.88 : x
  2. Step 2: Convert to fraction form
    21,664.34/32,510.28 = 11,809.88/x
  3. Step 3: Cross multiply
    21,664.34x = 32,510.28 × 11,809.88
  4. Step 4: Simplify right side
    21,664.34x = 383,942,505.57
  5. Step 5: Solve for x
    x = 383,942,505.57/21,664.34
  6. Step 6: Final answer
    x = 17,722.33

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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.