Home / 20,442.08-30,662.51-5,651.89

Finding the Fourth Proportional to 20,442.08, 30,662.51 and 5,651.89

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Solution

The fourth proportional to 20,442.08, 30,662.51 and 5,651.89 is: 8,477.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,442.08 : 30,662.51 = 5,651.89 : x
  2. Step 2: Convert to fraction form
    20,442.08/30,662.51 = 5,651.89/x
  3. Step 3: Cross multiply
    20,442.08x = 30,662.51 × 5,651.89
  4. Step 4: Simplify right side
    20,442.08x = 173,300,980.33
  5. Step 5: Solve for x
    x = 173,300,980.33/20,442.08
  6. Step 6: Final answer
    x = 8,477.66

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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.