Home / 15,072.42-22,606-3,979.20

Finding the Fourth Proportional to 15,072.42, 22,606 and 3,979.20

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Solution

The fourth proportional to 15,072.42, 22,606 and 3,979.20 is: 5,968.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,072.42 : 22,606 = 3,979.20 : x
  2. Step 2: Convert to fraction form
    15,072.42/22,606 = 3,979.20/x
  3. Step 3: Cross multiply
    15,072.42x = 22,606 × 3,979.20
  4. Step 4: Simplify right side
    15,072.42x = 89,953,795.20
  5. Step 5: Solve for x
    x = 89,953,795.20/15,072.42
  6. Step 6: Final answer
    x = 5,968.11

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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.