Home / 21,968.84-32,954.38-6,387.72

Finding the Fourth Proportional to 21,968.84, 32,954.38 and 6,387.72

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Solution

The fourth proportional to 21,968.84, 32,954.38 and 6,387.72 is: 9,581.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,968.84 : 32,954.38 = 6,387.72 : x
  2. Step 2: Convert to fraction form
    21,968.84/32,954.38 = 6,387.72/x
  3. Step 3: Cross multiply
    21,968.84x = 32,954.38 × 6,387.72
  4. Step 4: Simplify right side
    21,968.84x = 210,503,352.21
  5. Step 5: Solve for x
    x = 210,503,352.21/21,968.84
  6. Step 6: Final answer
    x = 9,581.91

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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.