Home / 21,696.28-32,522.40-8,557.96

Finding the Fourth Proportional to 21,696.28, 32,522.40 and 8,557.96

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Solution

The fourth proportional to 21,696.28, 32,522.40 and 8,557.96 is: 12,828.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,696.28 : 32,522.40 = 8,557.96 : x
  2. Step 2: Convert to fraction form
    21,696.28/32,522.40 = 8,557.96/x
  3. Step 3: Cross multiply
    21,696.28x = 32,522.40 × 8,557.96
  4. Step 4: Simplify right side
    21,696.28x = 278,325,398.30
  5. Step 5: Solve for x
    x = 278,325,398.30/21,696.28
  6. Step 6: Final answer
    x = 12,828.25

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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.