Home / 28,514.12-42,773.34-7,739.24

Finding the Fourth Proportional to 28,514.12, 42,773.34 and 7,739.24

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Solution

The fourth proportional to 28,514.12, 42,773.34 and 7,739.24 is: 11,609.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,514.12 : 42,773.34 = 7,739.24 : x
  2. Step 2: Convert to fraction form
    28,514.12/42,773.34 = 7,739.24/x
  3. Step 3: Cross multiply
    28,514.12x = 42,773.34 × 7,739.24
  4. Step 4: Simplify right side
    28,514.12x = 331,033,143.86
  5. Step 5: Solve for x
    x = 331,033,143.86/28,514.12
  6. Step 6: Final answer
    x = 11,609.45

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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.