Home / 18,730.31-28,099.57-7,043.53

Finding the Fourth Proportional to 18,730.31, 28,099.57 and 7,043.53

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Solution

The fourth proportional to 18,730.31, 28,099.57 and 7,043.53 is: 10,566.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,730.31 : 28,099.57 = 7,043.53 : x
  2. Step 2: Convert to fraction form
    18,730.31/28,099.57 = 7,043.53/x
  3. Step 3: Cross multiply
    18,730.31x = 28,099.57 × 7,043.53
  4. Step 4: Simplify right side
    18,730.31x = 197,919,988.57
  5. Step 5: Solve for x
    x = 197,919,988.57/18,730.31
  6. Step 6: Final answer
    x = 10,566.83

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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.