Home / 30,020.48-41,422.56-18,837.44

Finding the Fourth Proportional to 30,020.48, 41,422.56 and 18,837.44

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Solution

The fourth proportional to 30,020.48, 41,422.56 and 18,837.44 is: 25,992.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,020.48 : 41,422.56 = 18,837.44 : x
  2. Step 2: Convert to fraction form
    30,020.48/41,422.56 = 18,837.44/x
  3. Step 3: Cross multiply
    30,020.48x = 41,422.56 × 18,837.44
  4. Step 4: Simplify right side
    30,020.48x = 780,294,988.65
  5. Step 5: Solve for x
    x = 780,294,988.65/30,020.48
  6. Step 6: Final answer
    x = 25,992.09

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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.