Home / 28,362.62-42,542.37-8,639.52

Finding the Fourth Proportional to 28,362.62, 42,542.37 and 8,639.52

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Solution

The fourth proportional to 28,362.62, 42,542.37 and 8,639.52 is: 12,958.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,362.62 : 42,542.37 = 8,639.52 : x
  2. Step 2: Convert to fraction form
    28,362.62/42,542.37 = 8,639.52/x
  3. Step 3: Cross multiply
    28,362.62x = 42,542.37 × 8,639.52
  4. Step 4: Simplify right side
    28,362.62x = 367,545,656.46
  5. Step 5: Solve for x
    x = 367,545,656.46/28,362.62
  6. Step 6: Final answer
    x = 12,958.81

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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.