Home / 21,712.82-32,573.13-7,680.98

Finding the Fourth Proportional to 21,712.82, 32,573.13 and 7,680.98

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Solution

The fourth proportional to 21,712.82, 32,573.13 and 7,680.98 is: 11,522.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,712.82 : 32,573.13 = 7,680.98 : x
  2. Step 2: Convert to fraction form
    21,712.82/32,573.13 = 7,680.98/x
  3. Step 3: Cross multiply
    21,712.82x = 32,573.13 × 7,680.98
  4. Step 4: Simplify right side
    21,712.82x = 250,193,560.07
  5. Step 5: Solve for x
    x = 250,193,560.07/21,712.82
  6. Step 6: Final answer
    x = 11,522.85

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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.