Home / 30,342.31-41,855.24-18,992.10

Finding the Fourth Proportional to 30,342.31, 41,855.24 and 18,992.10

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Solution

The fourth proportional to 30,342.31, 41,855.24 and 18,992.10 is: 26,198.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,342.31 : 41,855.24 = 18,992.10 : x
  2. Step 2: Convert to fraction form
    30,342.31/41,855.24 = 18,992.10/x
  3. Step 3: Cross multiply
    30,342.31x = 41,855.24 × 18,992.10
  4. Step 4: Simplify right side
    30,342.31x = 794,919,108.04
  5. Step 5: Solve for x
    x = 794,919,108.04/30,342.31
  6. Step 6: Final answer
    x = 26,198.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.