Home / 20,158.77-30,238.26-7,676.02

Finding the Fourth Proportional to 20,158.77, 30,238.26 and 7,676.02

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Solution

The fourth proportional to 20,158.77, 30,238.26 and 7,676.02 is: 11,514.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158.77 : 30,238.26 = 7,676.02 : x
  2. Step 2: Convert to fraction form
    20,158.77/30,238.26 = 7,676.02/x
  3. Step 3: Cross multiply
    20,158.77x = 30,238.26 × 7,676.02
  4. Step 4: Simplify right side
    20,158.77x = 232,109,370.63
  5. Step 5: Solve for x
    x = 232,109,370.63/20,158.77
  6. Step 6: Final answer
    x = 11,514.06

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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.