Home / 21,960.12-32,943.39-6,375.72

Finding the Fourth Proportional to 21,960.12, 32,943.39 and 6,375.72

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Solution

The fourth proportional to 21,960.12, 32,943.39 and 6,375.72 is: 9,564.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,960.12 : 32,943.39 = 6,375.72 : x
  2. Step 2: Convert to fraction form
    21,960.12/32,943.39 = 6,375.72/x
  3. Step 3: Cross multiply
    21,960.12x = 32,943.39 × 6,375.72
  4. Step 4: Simplify right side
    21,960.12x = 210,037,830.49
  5. Step 5: Solve for x
    x = 210,037,830.49/21,960.12
  6. Step 6: Final answer
    x = 9,564.51

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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.