Home / 18,730.81-28,100.32-7,044.03

Finding the Fourth Proportional to 18,730.81, 28,100.32 and 7,044.03

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Solution

The fourth proportional to 18,730.81, 28,100.32 and 7,044.03 is: 10,567.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,730.81 : 28,100.32 = 7,044.03 : x
  2. Step 2: Convert to fraction form
    18,730.81/28,100.32 = 7,044.03/x
  3. Step 3: Cross multiply
    18,730.81x = 28,100.32 × 7,044.03
  4. Step 4: Simplify right side
    18,730.81x = 197,939,321.37
  5. Step 5: Solve for x
    x = 197,939,321.37/18,730.81
  6. Step 6: Final answer
    x = 10,567.58

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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.